Temperatures drop, it may snow, and your grass stops growing. It's time to store your mower until next season, but to ensure optimal condition in the coming spring, there are a number of maintenance tips you should keep in mind. Winterizing effectively guarantees you a longer life for your lawn mower, that it starts up in a few months and that it does the perfect job of cutting your lawn. Here are five tips on how to winterize a lawn mower.