Just remember to bid the max you will pay for the gizmo. That is the amount that if someone bids 1.00 more and wins you can shrug it off with..they paid too much. Also remember, unless it is a hand made, one of a kind; there will be another one sooner or later. Take some time to read the help area on Bid Groups. They make losing to someone with fuller pockets more palatable. Anyhoooo best of luck.
"Shop" and My Snipes