Yes, your iPhone might be able to help you repel mosquitoes, naturally. The Anti Mosquito -- Sonic Repeller is a free app that produces a high-frequency sound, called Ultra Sound, that humans can't hear but mosquitoes find annoying. When you turn on the app, the theory is the Ultra Sound keeps mosquitoes away. While the jury is still out if this works as effectively as chemical sprays, what's the harm? It's free, and all you have to do is turn it on the next time you're outside.

It doesn't matter if your community has a drought problem or not: Saving water is something we should all do. On a rainy day, don't just leave your umbrella and boots by the front door to dry. Instead, roll up the umbrella and place it by a large houseplant instead. As the water drips off the umbrella, it will give the plant a slow drink. Larger houseplants like potted trees can have rubber boots placed on top to help give them a drink, too. Everything dries off, you protect your floors and your plants win.

A greasy pizza box can be hard to recycle since the grease stains can contaminate the load of recyclable cardboard. So here's one thing you can ask for the next time you order pizza: Ask them to place a sheet of aluminum foil on the bottom of the box, then place the pizza on top. This helps keep the grease from seeping into the cardboard, plus it keeps the pizza hotter. And don't forget: If the aluminum foil is clean enough, just crumple it up and toss it into the recycling bin. It's recyclable!