I mow "Big Dog Farm," the name I christened my property with when the landscape work was finished, every two weeks during the summer. We have big dogs but not a farm in the Old McDonald sense. The task takes me about two hours to accomplish on a not-too-humid day. It would take me six if I bagged the clippings, which I don't. I mulch them instead.
Little did I know that my sloth was helping my lawn stay green. Mulching clippings provides lawns with nourishment. I also found the clippings cover any bare spots. Moreover, bagging grass saves valuable landfill space and transportation costs to the dump [source: West Virginia University].
Here's another tip: Don't rake leaves in the fall, mulch them with your mower. Scientists from Michigan State University say mulching leaves into your lawn stops weed seeds from germinating on bare spots, while providing ample nutrients to the rest of the lawn. As an added benefit, you won't need to spread as much fertilizer come springtime [source: Finneran].