Do you receive magazines in the mail that you don't remember subscribing to? You're not alone. Many publishers are working with online retailers to give "free" subscriptions as a reward for shopping on certain sites. But for many of us, the magazine is a waste, not a welcome gift. To avoid receiving magazines, do two things. First, always make sure to read the fine print before clicking "purchase" on websites. You can opt out of free subscriptions. Second, if you do receive a magazine, contact the publication and ask how you ended up on the list. Then you'll have the option to refuse the subscription moving forward.

A leaky toilet can waste around 200 gallons of water per day. If you have a leaky toilet, make the effort to get it fixed. Also, take notice when you see water-wasting toilets at work, in hotel rooms and at the gym. These are easy places to report broken fixtures to management so they can be fixed. Not only do these simple steps save water, they also help reduce greenhouse gas emissions, since it takes energy to pump and treat water, too.

Those fizzing tablets used to get dentures sparkling clean have myriad uses around the house. If you have reusable plastic storage containers that have been stained or have an odor from, say, leftover eggplant Parmesan, fill the container with warm water and two tablets. Wait an hour, and rinse to reveal a like-new container. This also works wonders on coffee-stained mugs and cups. And if you love your slow cooker, use tablets to get the inside sparkling clean.