First, look at the extra features tied to the deal. Do you get a good returns policy, a discount on shipping charges, or even an extended warranty? These all add value to your purchase. Second, avoid potential duds hiding behind those low price tags: Examine the specs and seller of the gizmo you plan to buy. While lesser-known companies can make good products, you don't always get the same quality guarantee as you do from a more established brand. Finally, can you get multiple purchases from one source? Even if a store isn't offering the very lowest prices, buying everything from just one or two locations might save you a few dollars on gas money or shipping charges.