To make it easy to stow and reuse plastic bags, make a dispenser from a discarded 2-liter soda bottle. Cut off the top and bottom with a razor knife. Then screw the dispenser to a cabinet door or closet wall (or attach with hook-and-loop tape).
If your ring gets stuck on your finger Windex will slide it right off.
If your toilet bowl could use a cleaning but you're out of traditional cleaner, use mouthwash instead.
You can cut your dusting time in half with one common household item: a dryer sheet. Simply swipe it over your baseboards and its anti-static properties will keep dust from sticking while making your home smell fresh.