When staying in hotels, don't feel bad about leaving barely used bars of soap and little plastic bottles of body wash and shampoo. Many major hotel chains like Hilton and Hyatt are working with nonprofit and local organizations in the cities their hotels serve to recycle toiletries. Local shelters and community support networks are the beneficiaries who distribute the toiletries to those in need. Personal care products are hard to come by and greatly needed by these nonprofit groups. Clean the World melts and sterilizes soaps and makes new bars that are given away around the world, where soap is literally helping to save lives.

A carton of old milk in the fridge doesn't need to go down the drain or in the trash, instead, use it in your backyard vegetable garden. Using milk as a natural fertilizer can help give your vegetables a huge boost. In addition to feeding them to help with growth, milk also helps with calcium deficiencies -- yes, plants have that, too! -- and helps fight viruses. Milk contains proteins, B vitamins and sugar that are good for plants. It also enriches the soil and is a good natural alternative to chemical fertilizers. To feed your vegetables leftover milk, simply make a 50-50 mix using water.

The new book "Juice," by the founders of Los Angeles' Pressed Juicery, includes this helpful tip: Don't throw away watermelon rinds -- juice them instead! Watermelon rind contains a compound that produces antioxidants and anti-fungal properties. As a plus, watermelon rind juice is delicious. Just run it through an electric juicer and add a squeeze of lime. The mild-tasting juice can be consumed alone or as part of your own homemade juicing recipe. According to "Juice," watermelon rind is even believed to be the wellness world's natural answer to Viagra.