I haven't bought anything through auctions but my friends told me that auctions can be a fun way to shop and sometimes you could get items at real bargain prices.
Auctions for goods I have heard of but recently, I came across this auction site for local services including pet sitting, auto care, even Reiki therapy. This site is in the US, based in Phoenix. Sellers can register and list services for free and there is no end-of-auction fee. As for Buyers, registration is also free and no payment is necessary until service is complete. If there is any service you need, why not check out http://www.AzizzleAuctions.com? You may be on to a new way of getting things done and cheaper too perhaps.