I have used very hot water, but that has limited effect. Check out this story and decide for yourself is this is something to try in the future.
One piece of advice, make sure you try this on concrete and do not try this on a car windshield or any type of door or window entry.
Learn more in this news story.
Here is the recipe if you want to try it.
There are 3 ingredients for making this ice melt solution:
1. One quart of lukewarm water
2. Three drops of dish washing detergent
3. One ounce of rubbing alcohol
Just mix and pour into a spray container for easy application!