Grout bonds our homes' floors together, saving us from tumbling into traversable wormholes and sadly witnessing our grandmothers utter their first curse words. Protect yourself and your floor shield with today's Groupon: for $79, you get up to 200 square feet of tile and grout cleaning ($170 value) from Re-Nu Tile and Grout Restoration, located in Midland. The sealant-savvy professionals at Re-Nu specialize in all areas of grout, tile, and stone care, including grout resurfacing to protect against future stains and discoloration. Treat your hardworking floors to a face-lift, performed using environmentally friendly, water-based sealants that swap out grout dinginess for fresh, uniform color, and protect against pesky germs and odors. The process also reduces day-to-day maintenance requirements, freeing up hardworking neighborhood critters to help humans fashion beautiful gowns for the ball.