These are considered an item of clothing that simultaneously gets chores done. In this case, it's mopping the floor. Just slip them onto the bottom of your feet and go ahead and do what you usually do. Your floors will practically always be clean, and other than the funny look, we can't really think of a downside to this style. Just don't wear them outside; it defeats the purpose.
Walking is something we all do inside of the house, so attaching a mop to the bottoms of our feet is practically genius. This is the definition of practical fashion.