Real talk: Can pack away his toys but not all the time. Knows how to wipe dust and spill if you'd ask them.

It is a rigid habit in our house to put the toys back in place after playing

If they can put their own toys away nicely ardy very good. Lol

They want to help with vacuuming but they’re not very good

Train your 3 yo to put his toy away. That will be a big help

They definitely enjoy piling books sitting at one corner ;)

Hanging clothes Cleaning toys Wiping tables or chairs

All of the choices above. Teach them responsibility

If she can do that will be of great help already

The least they can do is to clean up their mess