You can pay via paypal without having an account - it accepts standard creditcards... that said, I finished my donation by making a paypal account, so now I have one..

that being said, we do need some low cost micro payment companies - paypal aint bad but it costs A LOT to get money out of paypal if you don't have an american bank account. In addition to that, I've heard a lot of bad stories about paypal freezing accounts if a customer complains, so a good thing to remember is to "empty" the account often if you use it for earning money in addition to paying money