Bidding, formats and timing, including the parts eBay documents and the parts it doesn't.
6 postseBay's own Advanced Search has a Number of bids filter. Set it to 0 to 0, add Ending within, and you get zero-bid auctions about to close. No add-on needed.
7 min read · Auctions, Deal hunting
eBay lets you take a bid back for two reasons, inside one hour, and only if the listing ends within 12 hours. On Trading Cards you can't retract at all.
10 min read · Auctions, How eBay works, Buyer protection
Buy It Now usually disappears when somebody bids, but on a reserve listing it survives until the reserve is met. If it's gone, bid up to what you'd have paid.
8 min read · Auctions, How eBay works
eBay allows bid sniping, software included. A snipe only lowers your price when the other bidder would have raised theirs. Plus what three sniping tools cost.
8 min read · Auctions, Tools, Deal hunting
No study backs the Sunday evening rule, and two statistics behind it are fabricated. Automatic bidding is why the ending hour can't lower what you pay.
10 min read · Auctions, Deal hunting, Price research
A seller gets 24 hours to answer an eBay Best Offer, and a counteroffer lasts 96 hours. What to offer, and why you can't see the accept and decline limits.
10 min read · How eBay works, Deal hunting, Auctions