I came across happy bid day when I was laid up with a running injury. I became a little obsessed with auction bidding and winning products. It's a bit of a rush when you beat everyone and win an auction! At first I was bidding on auctions with bid packs as the prizes so I didn't have to purchase a bunch of bids at first, while I was learning how it works. I think even when my foot is recovered, I will come back to bid. Especially because they even have "free to bid" auctions where you don't have to buy bids to participate. Cool concept.