In 1770, a prisoner, William Addis, created America's first toothbrush, even though the Chinese had toothbrushes, much like we have today, in 1498. Before throwing out a used toothbrush, remember that in the kitchen and bath toothbrushes can scrub deep into tiny cracks and crevices and many hard-to-reach places and clean grout lines in ceramic tile. They're also great for deeply carved fine furniture. In the shop, dipped in solvent, they degrease and clean up tiny parts for artists and painters. They apply stains and finishes in tight places and make little flecks called "splatter-dashing" by drawing paint-filled bristles over a Popsicle stick. In the garden, (tooth)-brush insects off leaves with denatured alcohol and water. For the ultimate cleaner-upper, recycle your old electric toothbrush, too. And that's the On The House tip for today.