Three year old children can make big messes and aren't always willing to participate in cleaning up. Make cleaning up a game by setting a timer for 5 minutes, putting on some lively music, and telling your child that you're going to do a "5 minute boogie". This means that you focus on one room and clean or pick up as much as you can for 5 and only 5 minutes. If the room still isn't clean after the timer goes off, that's okay. You'll be amazed at how much cleaning you and your child can accomplish in 5 minutes, and the timer and music make this a game rather than a chore.