I saw your question above & I'll explain best as I can even though I'm fairly new. You list an auction. People use there credits to bid on your auction (you can get creidts by signing up, referals, & even buying credits, plus other ways) then you give them what you have listed for the credits that they have bid. You can ship an item for free or ask for the cost to be paid by the winner of the auction, this must be put in your auction, if you allow pickup, free shipping or the winner has to pay for shipping. If you charge for shipping you will ask to be paid with paypal, check, cash exc... I use paypal. Then once you have the shipping cost you use that to pay to ship the item out. Pack it up & ship it or if its local pickup make contact with the winner so they can pick up the item. No money is exchanged for any items here only credits & the only thing money is used for is to buy creidts or pay for shipping. hope that helps you out :)
Also, if you want to change the auction before there are any bids you can select edit at the top of your page when you are veiwing the auction so that you can add in shipping or add details, etc.
Can you please find out what the shipping fee would be to send to 94505? All you have to do is weight the item and you can go online to usps.com and find out. You don't actually have to take it in to the post office to weigh it for everyone's zip codes ;)
So I found a swing just like this on ebay and the shipping is a standard $19.99 I have included the link below for those that were asking about how much it would cost to ship...