Did you know you can make your own eco-friendly all-purpose cleaner from old orange and lemon peels? Start by liberally sprinkling table salt on top of the peels and let it rest for 20 minutes. The salt will draw the essential oils to the surface of the peel. Then brush off the salt and place the peels in a jar; fill it halfway with white vinegar, and then top it off with water. Let it sit for two weeks, and then decant into a spray bottle for a great-smelling and truly effective all-purpose cleaner you can use on virtually any surface.