Your garage sale is already set up, now if you want to have your items sold out then lower the price as the days go by. When you feel like it has been two weeks and there were only few items left then make it lower. And if you notice that a customer is buying several items then give her free items or freebies she could be happy or offer some items for a lower cost. And when you deal your items for hagglers, deal it with courtesy don’t be too strict, it can be annoying and worst you will lost your prospect buyer. Stick also to your last price to avoid being resentful after.