A reusable water bottle is a great way to ditch disposable plastic bottles and help the environment. But did you know it's imperative to rinse the bottle every day? Just like a coffee mug, utensils or a plate, a reusable bottle (and the lid) should be rinsed with hot, soapy water. If you don't wash it, you risk having harmful bacteria grow inside, which can make you sick. If you are using a reusable bottle at the office and don't have time to rinse it, try this one trick: Leave it in the fridge. A refrigerated bottle won't have the warmth to grow germs and bacteria overnight.

Most wildlife experts agree that feeding wild animals is not only unnecessary, but could be harmful, since those animals can lose their ability to forage for food. One way to help these animals is to provide them with a source of water, especially during drought conditions or the harsh winter months. A small birdbath or a large container of water on the ground can be a lifesaver. Just be sure to regularly replenish the water and keep it away from bushes, where predators could attack. If you plan to offer water to birds and wildlife in the winter months, invest in a small heating device designed for birdbaths; it'll keep the water thawed just enough for them to enjoy a good drink.

Many of us have given up drinking water and other beverages from reusable plastic cups, and it's also a good idea to give your pets water from a non-porous container. Instead of plastic water bowls, consider stainless steel. Plastic deteriorates over time and gets both large and microscopic scratches. Even with frequent washing, these scratches can become a breeding ground for bacterial growth. Plus, as plastic ages, it dissolves slowly into the water, which ends up in your pet's digestive system. Another bonus of stainless steel: It's recyclable in your curbside recycling.