Keep the cleaning time to a minimum so as not to irritate your passengers. I use the squeegee with minimal juice from the bucket and in the evening Invisible Glass with a cotton kitchen towel on the windshield and side windows.Question was windshield, I just use the squeegee sitting in a bucket of cleaning solution most stations have off the Interstate. Why make it more difficult than it needs to be, its just glass.
Some microfiber and a manual car wash when the need arises takes care of the rest if I'm not going to be home in a day or 2.
KISS principle at work.
Quick Detailer and micro-fiber works well to take the bugs off the front if they are not too severe. Otherwise Bug and Tar Remover with micro-fiber followed by Quick Detailer and a clean micro-fiber.