Good old Martha taught us that rather than buying those ridiculously expensive anti-slip mats for a rug, just turn it over and run a few lines of acrylic-latex caulk every 6 inches or so. Let dry and flip over and your rug wont be going anywhere!
Travelling with young kids made easy: Put an entire outfit (including undies and hair accessories) in a ziploc bag. One bag per day. When you get to the hotel, put the bags in a drawer and they can pick one per day. Huge time saver.
Aluminum Foil as Fixture Protector - Protect doorknobs and hardware in the kitchen and bathroom when you're painting by wrapping foil around them to catch dribbles. The foil molds to the shape of whatever it's covering and stays firmly in place until the job is complete.