does anyone know about paypal?

[xscene_laura]

does anyone know what kind of fees paypal charges ive treid their site and ive been to help center i just cannot understand. can someone explain it to me preferably someone that uses paypal to buy things. cause i have a CHECKING ACCOUNT and alot of the online stores only accept paypal(not just my card) and i dont know what kind of things paypal is going to charge to my account. like i asked yahoo answers and someone told me that when u first sign up it charges a small amount but they didnt say what the ammount it. i dont want it to like overdrawr right now i have barely anything in it thats why i havent signed up yet. and i cant figure out if each time i use paypal to make a purchase does it cost more than the actual purchase? does anyone know the specifics im totally lost with what paypal is (done the website dont understand it)
i read something about how it takes money out of your bank acount and into you paypal account see i dont get that. anyone know about paypal