I accept Paypal and USPS money orders only. Why? if you get frauded by someone and paid with a USPS MO they postmaster general will inspect the problem (or something like that)
as far as shipping goes, I tell them I will only charge actual shipping charges and no handling charges. If they want an estimate, I will ask for their zip, and go to the window at the P.O. If not, and they want the item shipped the next day (or same day) I tell them to pay via PayPal and add 15 bux (more if I think it will cost more to ship) and I will return the change in the box. Works everytime
ebay is a great way to get rid of junk
wanted to add, I always send stuff out USPS (convenient for me since we have a window here at the airport) unless someone has a FedEx acct, then, I fill out the paperwork and drop it off at the FedEx air facility here on the airfield