In this video, David teaches us how to clean the inside of windows easily and quickly. You don't need fancy tools, all you need is a terry cloth towel, a squeegee and dish washing detergent. First, put a little bit of the soap into a bucket and wash down the windows. Next, take a squeegee and wipe horizontally making clean lines. The excess water should drip down and you will catch it with your next squeegee wipe. If you have extra wetness on the edges, grab an old t-shirt and wipe the sides and frames to pick up the excess moisture. This will give it the final professional look.