If you’ve found an old, rusty axe sitting in the garage or stuck in a stump in your backyard, there’s a neat little household hack that you can use to clean it up a bit. All you’ll need is some salt and citrus in the form of lemons or limes. Salt the axe head up thoroughly, following this by juicing your lime or lemon on it, and then let it sit for a good 2 or 3  hours to let the salty citrus mix do its work. Once the time is up, just give it a good scrubbing and you should get a good bit (and maybe even all) or that rust off of the blade so that you can sharpen it, clean it a little more, oil it, and then put it away until you need it!