There's this service called square cash.
You know what's cool about it is that it just transfers money between two people's bank accounts without some weird middle man that charges you fees or imposes rules on how or what you spend your own fucking money on (cough ahem paypal). They also can't just take your money from you or lock your account and prevent you accessing your own fucking money (ahem PAYPAL cough). You also don't even have to sign up because it is basically an online point of sale like any dang old cash register at the store. The only drawback is that right now they only operate in the US.
Artists, especially those doing adult works, should consider using this service if they can!