Many people are shocked to see how successful apple cider vinegar is at curing warts (and this for those who have tried a lot of other cures).  Just apply apple cider vinegar to the wart (via cotton ball and band-aid) and let it stay there for a couple days to a week.  The wart should throb a bit, cause a bit of pain, turn black, then disappear.  Make sure to keep applying the apple cider vinegar even after the wart is gone for a bit to ensure the wart goes away for good.  

Other things you can apply to the wart are caster oil, garlic, milkweed, iodine, potato peelings, and vitamin E (just break open a vitamin capsule).

Before careful not to scratch, rub, or poke the wart (which is actually a tumor).