Do I really need that?

It's January and there are bargains to be had. The question to consider...is that item I am looking at buying going to improve my life? I have been checking out http://www.slickdeals.net/ most days. They have a list of great deals that is constantly updated. However, I almost never need any of those things...they don't sell groceries! So if I buy things I don't need, just because I can save a lot off the list price, is it a good deal? Obviously not. It's no bargain to have to manage stuff you don't use or need! However, if I happen to see items on there that I have been watching for and can get a really good deal...now that is bargain shopping.