One of the easiest ways to prevent food waste is to freeze the food to prevent spoilage or rancidity. When it comes to cut-up fruit, you can freeze it and use it in smoothies by simply keeping it in airtight containers. But if you plan to eat thawed fruit later, be sure to sprinkle a small amount of sugar on top. Fruit contains pectin, and when you freeze it, the pectin dissolves. Pectin gives fruit its shape, so when it thaws, it can be a mess. By adding just a little sugar, you give it an extra pectin boost.

When moving into a new home, one of the biggest hassles can be finding cardboard boxes, assembling them and hoping they're treated gently during the big move. Then, after you move, you're stuck with cardboard boxes that need to be broken down before recycling. Many moving companies are getting rid of cardboard altogether and switching to plastic crates. These crates are sturdier and can protect your belongings better. Plus, they are reusable by the companies, which means less waste, too. The next time you move, look into companies like Rentacrate, or see if your moving company can provide crates as a green alternative.

The most fuel-efficient way to travel by plane is to go directly from your departure city to your destination without any connecting flights or stops. Often, when booking a ticket online, you'll notice there are flight options that appear to be "direct," but be sure to double-check: A "direct" flight is not necessarily a "nonstop" one. Some direct flights mean the plane will stop at a different destination to deplane and accept passengers, continuing on to your final destination. Only nonstop flights go without stopping.