DIY A Draft Stopper Using An Old Item You Already Have
By Lindsay Donaldson
Grab an old sock, or one that's lost its mate to the dryer abyss, fill it with grains, stitch the opening shut, and you've got an easy (and basically free) draft blocker.
Sew the opening shut, and place your new draft stopper along the gap between the door and the floor. You can also place it on windowsills or other draft-prone spots.