I’m one of those guys who takes 15 minutes after mowing the lawn to give the mower a beat-down maintenance session: make sure the blade and deck are clean, give it a head-to-toe cleaning, spray the blade with WD-40 or something so it doesn’t rust, and an all-over inspection. That’s also a good time to make sure that no bolts have worked their way loose or anything as well. It may sound a little overboard, but I bet my mower lasts for 20 years. My dad always taught me: “If you take good care of a tool, it’ll take good care of you.”