R.O.
The swiffer is a good idea. What my wife & I do with our 3 & 6 yr old girls is let them help carry & put away groceries, help move clothes from the washer & dryer (both front loading). When cleaning, let her wipe areas she can reach, with a dry cloth or swiffer duster. Help move things from shelves (hand her stuff to carry to another room, then help move things back. If she likes to watch you cook, you can let her help "add ingredients", or stir cake mixes, pancake batter, etc.