do many of you use ebay ?

I just signed up and hope to use it to buy and sell..

Justr a couplr of q's.

on it seems you have to pay for selling an item is this right ?

on it seems free but when I put something up for sale it says by blance is 1.80 something ??? How do they get this off of you I gave NO credit crad details ?

Could someone fill me in ?