Cheap Hand Soap
If you buy ultra-concentrated dish soap, check the label. If it says "Anti-Bacterial Soap," save the bottle the next time you use one up. Put about a tablespoon from a new bottle into the old one, add tap water, shake well, and--presto!--hand soap for pennies per pint. With two kids in diapers, I wash my hands all the time; soap diluted to this strength gets my hands clean without cracking my skin. Actually, my husband discovered this. He just can't ditch the habit of adding a hearty squirt or two of soap every time he rinses a plate. Since the ultra-concentrated stuff only requires a drop or two per dish, we were wasting a lot of money, so he pre-diluted some. Then he checked the label and realized that he had also made hand soap.