1. Conveniently packaged snacks: spike potato, barbecue, pancake fruit, fried cold noodles, roasted squid, roasted gluten, braised pork cake with plum vegetables, omelet cake, stinky tofu, fried chicken, iron tofu, Chinese hamburger, mala Tang and the like.

2. Small accessories and groceries: hairpins, hair ropes, earrings, rings, postcards, bags, hot water bottles, scarves, cups, small potted plants, dolls, small desk lamps, etc.

Step 3: fruit

4. Old books

Anyway, just walk around the university town a few more times. You need to make a field trip.