The whole family traveled through time and became doctors, raised children and farmed in ancient tim

"Meal ticket?" Everyone was a little confused by the term that Xie Songlin suddenly said. They looked at each other, their eyes full of doubts and puzzlement.

Xie Songlin looked at everyone's confused expressions and began to explain patiently, "A meal ticket is like a voucher. Students buy meal tickets in advance and then simply hand them in when they use the food in the cafeteria. This way, they don't have to count and collect money on the spot every time. It's both convenient and quick."

After hearing what Xie Songlin said, Xie Songbai patted his shoulder and said excitedly, "Songlin! You've been educated after all! How come your brain works so well?"

Xie Songlin continued, "We can make meal tickets of different denominations, such as one meat and one vegetable, two meats and one vegetable, two meat dishes and two vegetable dishes, and so on. Each type of meal ticket can be made with a different color of paper. When the time comes, the person collecting the money only needs to remember the meal ticket. They don't even need to know everything on it. They can just tell them apart by the color."

"You can collect money just by recognizing colors?" Old Mrs. Shen was a little amused. "Then I, an old woman, can become an accountant!"

Everyone in the room laughed along with Old Lady Shen, and they were all excited about this novel idea.

This method is both easy to operate and interesting, making people who are illiterate and know nothing about arithmetic feel that they are capable of collecting money.

"When the time comes, we'll set up a small window in the cafeteria to sell meal tickets, and hire someone to sit there and sell them. This will require someone who knows how to do math. Let me take over in the early stages," Xie Songlin said. "I'll hire an accountant to take over later."

"Could someone have forged this meal ticket?" Xie Songyang asked worriedly, "Although most of the students in the academy are good, there are always some bad people out there."

"Don't worry, second brother. I will use some special paper and stamp it with a seal I specially designed. No one else can imitate it." Xie Songlin smiled slightly, and his mind was already thinking about what kind of paper he could take out from the space and use.

"Okay, that's good. We're all set now. I'll gather everyone in a moment. Before the students come back, we'll go to the cafeteria and get ready tomorrow."

"Okay, then I'll go prepare the paper for the meal ticket."

After the Xie family meeting, Xie Songlin returned to his room and entered the space to find some paper. As soon as he entered, he found his daughter squatting beside the black soil, looking around. Her small figure squatting there was particularly funny.

"What are you looking at, girl?" Xie Songlin leaned over to take a look curiously.

"I think this spring wheat will be ready for harvest in about ten days. I'll be able to calculate the yield per mu and give it to you then." Xie Wanxing straightened up and looked at Xie Songlin. "Dad, how come you have time to come here?"

"I need to talk to you about something."

Xie Wanxing instinctively knew this was not a good thing, and subconsciously took a step back: "What's going on?"

"I need you to draw a meal ticket." Xie Songlin grabbed his daughter by the collar and lifted her up. "Come on, come on, let's go in and talk. We need some paper."

"What paper are you looking for?" Xie Songlin carried his daughter directly to the study upstairs. Xie Wanxing was a little dissatisfied at first, but later she felt that this "mode of transportation" that did not require her to walk so shakily was also good.

Xie Songlin put Xie Wanxing down and asked, "Do you have any paper with a variety of colors that can't be reproduced in ancient times?"

"All the paper I have couldn't be made in ancient times."

"I need to make canteen meal tickets. I'm worried about counterfeiting. Can you find some colored paper?"

"Cardboard. That's a bit harder and comes in a lot of colors." Xie Wanxing opened a cabinet on the bottom floor and pointed inside. "There's a lot here. Take some out and come back tomorrow when it's refreshed."

Xie Songlin bent down and looked at the colored paper in the cabinet, then turned back to look at Xie Wanxing in shock: "Why did you buy so much of this stuff?"

"...It's Chinese New Year, and my nephews and nieces are coming. If I give them a stack of paper, they'll play with it forever, so I just stocked up a little bit."

Xie Songlin simply dragged out all the colored papers. There was a ready-made manual paper cutter in the study, so he cut them into small rectangular strips as long as his fingers.

"Come on, draw." Xie Songlin handed a small piece of paper to Xie Wanxing, "Design me some simple drawings of those small dinner plates. For example, on this green paper, draw two vegetarian dishes and write down the face value of seven cents. On this yellow paper, draw one meat dish and one vegetable dish, with the face value of ten cents. On the blue paper, draw two meat dishes and one vegetable dish. On the red paper, draw three meat dishes."

"So cheap?" Xie Wanxing was a little bit incredulous. "This is half the price of our current restaurant, right? Can we make money?"

Xie Songlin nodded. "I did some rough calculations today. With small profits but quick turnover, we can certainly make money. Vegetarian dishes are three cents, meat dishes are six cents, and rice is all you can eat for one cent."

"Hasn't the price of grain increased this year? And I remember there were purchase restrictions."

"Although the newly delivered grain is subject to purchase restrictions, the government is doing its best to control grain prices, so they will eventually come down. Besides, the rice in our space can be recycled. I can just pack it up and ship it to the cafeteria at a low price." Xie Songlin said as he cut paper. "Oh, the vegetables and rice in our space can always be supplied to us at low prices. Just think of it as me finding a mysterious grain merchant."

"Okay, but you're cutting so many. How many thousands do you want me to draw?" Xie Wanxing was dumbfounded as she watched her father cutting paper non-stop.

"You are stupid, you are making a copy." Xie Songlin said as a matter of course.

Xie Wanxing looked at Xie Songlin as if he were a fool: "Dad, have you forgotten? These plugged-in items in our space can't be used. Only these unplugged items can refresh the power."

Xie Songlin looked smug, and returned the look he'd given his daughter as a fool: "I figured it out. Don't you have that portable copier? You can just use that to copy it, and then I'll take it out to stamp it. I'll see who can imitate it."

"..." Xie Wanxing was a little surprised at her father's strange memory. "It's amazing that you remember all these messy things at home. I almost forgot I bought this thing."

However, Xie Songlin's calculation was correct. Although the small portable copier was not as efficient as the large copier, it was sufficient for copying these small notes. Moreover, the battery could be refreshed in the space. As long as it was used up, it would still be fully charged when you came in the next day. There was no need to worry about running out of power.

Xie Wanxing thought for a while and then started to draw. She decided to draw some simple sketches to avoid trouble by drawing something too complicated. She drew a chubby little rice bowl, a plate of bok choy to represent the vegetarian dish, and a plate of braised pork to represent the meat dish.

On the green cardboard for the two vegetarian dishes were two plates of bok choy, and on the green cardboard for the one meat and one vegetable dishes were a plate of bok choy and a bowl of braised pork. The face value was written below, and "Xie Family Canteen" was written in the smallest corner. And so on. She quickly drew meal tickets of several colors.

Xie Songlin had also cut a lot of paper and folded it into small mountains of various colors. She went to find the handheld copier, scanned the content of her drawing in the scanning box, adjusted the approximate copy parameters, and stuffed the meal ticket cut by her father into it. Soon a copy was completed.

Xie Wanxing suddenly realized that she had been tricked by her father again. Although she didn't have to draw each one by hand, due to the efficiency of this portable copier, she still had to slowly copy thousands of meal tickets.

"Hey, Ah Xing, you go ahead and get busy." Xie Songlin seemed to sense the resentment emanating from his daughter and was ready to leave. "Dad has something to do, so I'll leave first."

After saying that, he immediately flashed away from the space.