If there are certain airlines you don't fly often but have racked up a small amount of frequent flier miles, consider donating the miles to charity. With as little as 1,000 frequent flier miles, you can support nonprofit groups like UNICEF, Habitat for Humanity, the Humane Society of the United States and amfAR, which use the donated miles to secure airline tickets for their valuable work. It's as simple as logging into your account and searching for "donate" in the search box. With a few clicks of the mouse, you can help these worthy charities.

Many people are raising their own chickens, so they have an ample supply of free-range, organic eggs in their own backyard. But ask anyone who has done this, and they will tell you there are times when the supply far exceeds the demand. Whether you raise chickens or not, if you find yourself with an extra supply of eggs (maybe they were on sale), do two things to extend the life. First, use a pencil to mark the eggs with the date you collected them; use the older eggs first. Second, since eggshells are porous, you can coat them with vegetable oil if you aren't planning to use them right away. This creates an airtight barrier and keeps the insides of the eggs fresher for longer.

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.