But never fear, we have a Spotbot. The miracle of modern housecleaning that targets one small circular area with it's cleaning powers.
Yesterday, Mrs. Grumpy had a bunch of errands, and was gone most of the day. She asked if I'd do something about the large number of food/crayon/who-knows-what stains in one room.
So I got the Spotbot out and attacked the areas. I thought it went pretty well. It returned the stained area to their original whiteness, without too much work on my part.
Mrs. Grumpy got home, and was not as impressed with my work as I was. While she agreed that I had, indeed, done a good job of whitening the affected areas, she wasn't happy with the overall results.
I tried telling her that I took the kids to a movie, and that crop-circle making aliens had invaded and been working on a smaller scale in our home.
She didn't buy it.