I'm not really a patient person when there's something I want to get and I actually have the money to get it. I've learned that a little research into what I want before hand has saved me from one thing when it was something else I wanted to get.
Example: I really wanted an Ipod touch or an Ipad 2 to read pdf's with (and to have a cool gadget). With a little research, I figured out it was a Nook I really wanted. I love my Nook so hard. It was EXACTLY what I wanted.