1. My own notes, books I have read and books I have never used.

2. Don't wear clothes, etc.

3. Daily necessities you don't use, such as thermos, washbasin, shoe rack, etc.

None of the above items need to be purchased, so the price is relatively cheap and easy to sell.

If you sell your own goods.

You can sell trinkets and so on. And the purchase price is cheap. If you can't sell it, you can keep it yourself.

Hehe, good luck.