After raking up all the fall leaves in your yard, you will probably need to mow your lawn. Of course you can use a motorized lawn mower that needs gasoline to work, but you're not doing much for the environment. Why not use your own muscle power instead with a manual real push mower?
How does it work? All you do is push it along and it cuts your grass. It's that easy. No toxic fumes. No gas spills. No annoyingly loud noise. Plus it's cheaper than a gas-powered mower. All that and it burns more calories since you're doing all the work. 486 calories an hour as compared to 364 from regular mowing.
Still not convinced? Take it from this smart eight year old.
Fit's Tips: If your lawn is kind of huge, you may be into this bicycle-powered push mower instead.