Pet clothes and bedding don't have to take a bite out of your wallet. Avoid buying dog coats and pet bedding from October to December, when prices are sky-high. Check in the off-season for discounts from 30 percent to 50 percent. We found a $20 coat half off at one boutique. Visit flash-sale sites such as Gilt Home and One Kings Lane for chic cheapies, but check the return policy.