Suggested Ingredients:
1/2 cup isopropyl alcohol
1/2 cup water
1 tablespoon baking soda
Mix well and keep near your computer for quick touch ups. Use it as a spray on your screen, but be careful to use a cotton-tip on and around the keyboard so the contacts under the keys don't get wet. Shelf life: 3 to6 months; can be stored in a spray bottle.