I've always had the opinion that my time is too valuable to spend endless hours shopping around for the deal of the century. Sure, I'll wait for certain things to go on sale, but that's about where my patience tapers. There have been a handful of web applications introduced lately that would actually save you money without driving you crazy. In fact, they make it pretty painless.
These sites are great for more expensive electronics or gadgets that maybe you received or generously gifted for the holidays. If that's the case you may still have time to take advantage of any price reductions. Using these sites is simple: You create a free account, enter the URL of any items you've purchased from their supported merchants, and they'll email you if the price drops during the protection period. Check out Price Protectr.