Elbow grease

I finally got tired of nagging the stinky boys to clean up the disgusting mess they made of the grout in the kitchen while I was away in Oregon so I used my elbow grease to get is as clean as possible. The bottom half is the color the grout was before cleaning and the top half is after. I was able to get about 3/4 of the kitchen done before my back started hurting. Now maybe they will feel guilty and finish the rest....yeah, right!