If you have small kids, you know that every year brings new needs and wants, which means more things outgrown. That includes toys, accessories and clothing. Some things you’ll want to keep, but many things lose their utility very quickly after the stage has passed. I’m thinking toilet training especially. The good news is that a lot of things can be sold easily in a garage sale, and you can use some items to draw more visitors. Place Craigslist or other ads in the paper the day before. Headline anything in your ads that might be remotely collectable. Unless you want early-birds knocking on your door, plan to be outside your house a half hour before the announced time of your sale. Play...