Cut up t-shirts - Use for the most dirty items and then toss them
Flannel sheets - Can be used more than once for light cleaning and dusting (wash afterwards)
Socks - Dusting. Put sock on your hand and wipe along blinds (you can use either wet or dry).
Towels - Cut up and use to mop up spills. Use on Swiffer cleaner.
Cloth diapers - You'll want to use these again and again so keep them for dusting and light cleaning and then wash.
Tea towels - Use for wet and dry cleaning or to dry surfaces after cleaning.