Spring Cleaning/Garage Sale

This weekend I am having my first garage sale. I will be very busy this week getting prepared! This is my first step in getting organized and going simple. My neighbor is having one and invited me to join in on the fun. I figure this is the best way to get some spring cleaning done. It is also going to help me keep my house clean cause I am going to TRY to get rid of lots of stuff. I am really bad at getting rid of things. I am going to use the if I have not used it in a year it's gone method. What ever I do not sell is getting donated. How do you get rid of stuff?