a) Create Paypal A (can be your mani) where you will have all money
b) From account A send money to account B(dupliacating acc) [use tempmail] send it as !!!PRODUCT!!!
c) From account B you can buy anything you want.
d) From account A refund transaction which was to account B, you will make it like *I didnt received a product*, you will make fake conversation between accounts
e) Click on *Issue refund to paypal* and wait few days untill you will get money back



Tips:
try A->B->->C(friend)->A
You will get 2times more money!
Buy IRL things from amazon etc
Buy steam giftcards from G2A and sell them