This is a tip i saw from a website(showmethecurry.com), quite useful one.
Soak the onions or garlic whichever u want to peel, in water for 10-20 min then try removing the skin, u will be much surprised to see they come off so well and your hands are not sticky anymore.
If you want to remove the odor of onion or garlic from your hands, try rubbing them on a stainless steel vessel, thats it.