I too am into this stuff. I’ve had many a successful Garage Sale. I normally have to fight people out of my garage at the end of my sale. Once, a guy tried to buy a keepsake watch that I wasn’t even selling!
Just an FYI, a great site related to Garage sales that I like to use is: http://www.yardhopper.com.
I think I will be holding another sale in a few weeks. I’ll keep you all posted.