Each year, if you have an asphalt driveway, it is important that you sealcoat your driveway against the elements. Doing so regularly will prevent the cycles of melting and freezing water from destroying your driveway. After you have patched the large cracks (over ¼") and holes in your blacktop by folllowing our tutorial on Repairing Asphalt Cracks, you are ready to start sealcoating the entire driveway. Be sure that you are wearing old clothing (this is not a "clean" project), that the temperature is at least 50°F, and that you do not expect rain for about a day and a half. For a step-by-step guide to sealcoating asphalt driveways, take a look at this DIY video tutorial.