Inhale a few drops of tea tree oil in steaming water for colds and sinus issues...amazing.
Baking soda as toothpaste.
Apple cider vinegar in warm water is a great foot soak and is great for getting rid of yellowed toenails (fungus). It's also great for bee stings - put a bit of baking soda on the sting and then a drop of acv - takes the pain away immediately as it bubbles up like a miniature volcano.
I once annihilated a wart with a banana peel but it doesn't work for all kinds of warts. Worth a try if you have a big one though. Just take a little chunk of peel and put it over the wart, the inside of the peel against the wart. Duct tape it in place. Leave it there for a week, or redress it the same way every day for a week with a new peel and tape.