Are you looking at buying something, but don't know how much it costs to ship because the seller didn't include it in the listing?  ASK ASK ASK Don't bid on anything until you know the shipping cost!  I bought an item and didn't realize that I didn't know the shipping cost and I was horrified when I saw the invoice.  The seller wanted $23.95 to ship an item that weighed less than a pound.  On top of that the seller was two states over from me and I was forced to pay the ridiculous shipping to maintain my positive feedback.

Never ever bid without knowing the shipping cost or you may be horrified when that invoice arrives in your inbox.