Paypal just announced that you can now use their services in the US without having a bank or a credit card, you can purchase Paypal Cash (its like a prepaid card) at the following stores:

CVS
Dollar General
Family Dollar
Freds
Rite Aid

They also just announced that CoinStar (the little coin counting vending machine) will be able to add funds to your paypal account now.

Just figured I'd spread the word to those that have to jump through hoops to purchase credits because of lack of bank account or a credit card.