I do it once a week and sweep on other days. We don't have carpet in the house, but I vacum and mop once a week to keep it clean as we have dogs. Today I did it, and then it rained, and then the girls ran out in the rain and came back in with mud... then they let the dogs in. I just let it all dry and swept it up... then I put a wet rag over the muddy bits. I wasn't going to do the floors over just for one small muddy bit.