8 Surprising Household Uses for Chalk
by Lindsey Ellefson from Lifehacker on (#685D2)
You probably don't give chalk a whole lot of thought on regular basis-but maybe you should. Chalk isn't just for old-school classrooms or for kids who want to (temporarily) beautify their driveways and sidewalks: No, the porous sedimentary rock actually has a considerable amount of practical uses around the house....