No - don't go away! It has to be said that my answer to that question would be "not often enough". I sweep up the crumbs and I dab at any noxious spots with the floor cloth ... but it's quite rare that I get the squeegee and bucket out, and give it a good clean. Of course, I must point out that I have very forgiving grey tiles and no kids or animals coming in with dirty feet. Those of you with young families and pets probably have to clean a lot more often.