How do I prioritize my wants?

I completely understand needs should come before wants, and I am at the point where I can easily meet all my needs, but now what about my wants? I have so many things I would like to buy, places I would like to go, things I would like to save up for, but I'm not sure which of my wants I should put in front. Should I buy the little things I want first, or should I save up for one of the more expensive things I want, such as a new stereo system for my car? One thing I try to keep in mind is "how much will I use it?" and that has helped me slightly, but it's hard to tell how much you will use something until you have actually owned it. So, please if anyone has any suggestions, things you have tried/done, ideas, comments, etc: I would love to hear from you! ~Thanks, Seth