Searching for a fresh trend before it catches fire (and subsequently sells out) is, as Cher Horowitz put it, like searching for meaning in a Pauly Shore movie ...A.k.a. impossible. While we can't always predict the next big thing to buy, we can catalog the best big things that are actually shoppable now. With a little help from our weekly column, The Sell-Out , we pulled together the top-selling products from the past year that are no longer sold out