Paypal

All teenagers should open a paypal account! Ask for parents first though(I didn't) but I think you still should. Then set up your paypal account by doing the things it requires you to do to verify your paypal account. Opening a paypal account allows you to accept cash faster rather than waiting for a check from various paying sites. So I recommend you open one with your parents permission or you could even use your parent's paypal account and just get the money out of their account when they recieve your payments! You can also buy things online with your paypal account so what I'm saying is, that a paypal account can be a valuable thing to have.