According to the National Association of Realtors (www.realtor.com), when the wind chill factor drops, so do home prices, as sales volume cools down from summer highs. For starters, there's less competition from rival buyers, which can lead to a bidding war that pushes costs up. Larger homes may also sport bargain prices. That's because married couples with children—those who are most likely to be in the market for a bigger house—prefer to shop in the spring and summer so they don't have to pull the kids out of school before the end of the school term. Other potential bargains: Be sure to look for homes that are for sale by the owner and homes that must be sold quickly because the owner is relocating or going through a divorce.