How To Have A Successful Yard Sale Spring is the perfect time to clean out the garage, the attic and the closets (even under the kid's beds) and have a garage sale! We've heard that listing agents are encouraging their sellers to have garage sales to help drive traffic and awareness! Better yet, organize a neighborhood-wide garage sale! Offer to help out your sellers with signs, balloons, post on your website, or make some lemonade! Here are a few tips to share. PREPARATION Preparing for a yard sale is hard work. Ideally, you should start working on your yard sale 3 weeks prior to the event. (7 comments)