If you’re going to own only one extension cord, the 50-foot version is versatile enough to maneuver across a two-car garage, run between two rooms indoors, or stretch deep into a yard outside. AdvertisementIf the U.S. Wire & Cable isn’t available, get the Husky 50 FT Cold Weather Indoor/Outdoor Extension Cord. The outlet on the end takes a firm grasp of any power cords you plug into it, reducing accidental disconnections. All of the picks in this guide are available primarily from online retailers; the best extension cords are rarely available on the shelf at big-box hardware stores. But if you need a cord right now, we do have tips for choosing the best extension cord at your local hardware store.