A Sponge Eraser
Specialty eraser sponges blast tough dirt and grime like magic. They're made of melamine foam, a soft but strong material that tackles embedded dirt without damaging abrasive action. A sponge eraser will get scuff marks off your entry floor in seconds and you won't have to use the usual elbow grease. If you have kids, rejoice. It's also great at getting crayon off walls and tile. Just add a little water and rub. Seriously, if you haven't tried one of these sponges, you're working harder on cleanup than you have to.