If you’re still using paper towels to clean your windows, it’s time to make a switch. One solution is to use crumpled newspaper instead, but it does tend to leave your hands black and inky. I prefer to use cotton rags. My system is two-handed: squirt homemade window cleaner on the window, then use one rag to wipe most of the grime and cleaner away (right hand). Follow this with final wipe-down with a dry rag (left hand).
Photo: Flickr user D’Arcy Norman