Remove debris first by sweeping or vacuuming. Don’t forget to clean the baseboards, too, since they collect a lot of lint and dust. Mop the worst spots by hand. Mops don’t do a good job cleaning around the base of or behind the toilet, so do this small area by hand. If you’re potty training boys, you might want to use an old scrub brush around the base of the toilet, too. When that’s all clean, switch to a mop.