I just saw one advertised yesterday on TV, it’s a stick with a pad on the end made just for wiping the inside of your car window.
Of course it was buy one get one free, just pay shipping and handling charges...
I was thinking of how I could devise my own somehow by wrapping some window-cleaner sheets around my regular squeegee. I think it might be too big to get way down by the front of the dash, though.
Old Steven Wright joke: I felt like streaking so I drank some Windex.