Clean doors

Wet a sponge or rag.
Turn off the water.
Wring it out so it's not too wet.
Go to your front door and rub it door with the sponge or rag.
Rub harder on spots that look dirty.
Clean both sides of the door.
Rub the door handles or knobs.
Take your sponge or rag back to the sink and run it under cold water.
Rub the sponge or rag against itself to clean it.
Turn off the water.
Do the same to every door in your home, taking the shortest route between doors.
Clean your sponge after each door or when it looks dirty.