10 things you should never buy used By Liz Pulliam Weston - MSN Columnist "Saving money by surfing the Internet for bargains is delightful, but you can take it too far. Shoes. Poor-fitting shoes can cause everything from bunions to back problems, so don't buy footwear that's already been molded by someone else's tootsies. This is particularly important for kids whose feet are still growing. Shop sales, buy last year's models, but don't give in to the temptation to save a buck now that's going to cost you more in pain and hassles later. Exception: You're buying old cowboy boots to turn into lamps." I wonder how everyone here feels about this?