mugsy ... I've done that calculation, too.

11 dogs X 4 paws = 44 paws - 1 paw for Queenie the three-legged dog = 43 paws

43 paws X 20 trips outside per dog per day (we have a doggie door!) = 860 paw prints per square foot per day

860 paw prints per square foot per day X 2,000 square feet in the house = ...... oh, I can't bear to actually finish, I would cry.

Suffice it to say, my floor gets swept and mopped a LOT! (But not nearly as much as it should!)