Fluff down-filled clothes and comforters
Down-filled items like jackets, vests, comforters, and pillows get flat and soggy when you wash them. You can fluff them up again by tossing a couple of tennis balls into the dryer when you put them in.
Sand curves in furniture
Wrap a tennis ball in sandpaper and use it to sand curves when you’re refinishing furniture. The tennis ball is just the right size and shape to fit comfortably in your hand.
Cover your trailer hitch
To protect chrome trailer hitches from scratches and rust, cut a tennis ball and slip it over your hitching ball. The tennis ball will keep moisture out and rust away.
Massage your back
Give yourself a relaxing and therapeutic back massage. Simply fill a long tube sock with a few tennis balls, tie the end, and stretch your homemade massager around your back just as you would a towel after a shower or bath.
Keep swimming pool oil-free
Float a couple of tennis balls in your swimming pool to absorb body oils from swimmers. Replace the balls every couple of weeks during high-use periods.
Make bike kickstand for soft soil
To prevent a bicycle kickstand from sinking into soft grass, sand, or mud, cut a slit in a tennis ball and put it on the end of the kickstand.
Store your valuables at gym
Here’s a neat way to hide and store valuables when you’re working out at the gym. Make a 2-inch (5-centimeter) slit along one seam of a tennis ball and insert the valuables inside. Keep the ball in your gym bag among other sporting gear. Just remember not to use the doctored ball next time you’re out on the tennis court!
Massage your sore feet
For a simple but amazingly enjoyable and therapeutic foot massage, take your shoes off, place a tennis ball on the floor, and roll it around under your feet.