First, lottery tickets.

Second, go to Ai Wu market to buy some socks and pants and sell them in the morning market.

Third, go to the farmer's hall to buy some vegetables to sell or cheap fruits.

Fourth, find a friend who speculates in futures, and you invest 100 yuan.

5. Steamed steamed bread is sold in the labor market or automobile trading city.

Buy some frozen fruit and sell it at the construction site in the shed reform area. (One box and one quilt is basically zero cost)

Seven, rent a cart to sell tofu (a plate of tofu profit 10 yuan).

Eight, buy some pirated CDs to sell. (Try not to do illegal acts, this article is not for reference)