With the Northeast getting hit with a snowstorm on April Fool's Day—no joke—it may be hard for people living there or other places still under snow to think about mowing their lawn. However, April is a great time to buy a lawn mower. Most retailers still have last year's mower models in stock, and they'll want to clear them out to make room for the 2011 models. Therefore, look for markdowns in April on lawn mowers.