If you love avocados but not their expensive price tag, listen up. Summer is a good time to stock up on seasonal produce like avocados because not only are they at their peak, but they are also at their lowest prices. But instead of going nuts by eating an avocado-only diet, save them by freezing them. Just cut the fruit in half and remove the pit. Keep the skin on and place it in a freezer bag; squeeze as much air as possible out of the bag before sealing it shut. Avocadoes will freeze well for about three months, so whenever you want to whip up some guacamole, you'll have your stash ready to go.

The majority of litter at beaches isn't caused by litterbugs. It's from single-use products with lightweight leftovers, like wrappers and empty plastic bottles. These items are accidentally knocked out of trash cans or blown away by a gust of wind. If you have trash from your day at the beach, don't use the receptacles there; take the trash with you. Bring it home or to a hotel, where refuse can be properly and securely disposed of. You can even use the app iRecycle to find the closest recycling bin to you if your hotel does not recycle.

How many times have you seen a landscaping sprinkler system running at full power during a rainstorm? It's not because of a wasteful homeowner at all; it's because the sprinkler system is on an automatic system that does not know the weather. To fix this problem (and save water and money), have a rain sensor installed to your sprinkler system. The sensor determines whether enough rainfall has occurred in order to skip an irrigation cycle. If it senses enough moisture, it breaks the electrical connection to your sprinkler system so it won't turn on. It's easy to install and makes your sprinkler system more efficient.