Professional chefs will tell you that a damp dish towel under your mixing bowl will keep it from slipping and sliding on your counter as you mix.
Next time you open a bottle of wine, save the cork! You can use a slice of synthetic cork to brace a wobbly table leg. Just mark the amount of cork needed, slice it off with a utility knife and glue it in place.
Fill some water bottles halfway, then lay them on their side in the freezer. When it's time for a cool drink, grab a bottle, fill it up with your beverage of choice, and let the wall of ice in the bottle keep your drink perfectly chilled.
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).