Windshield clearing and cleaning-old new or new tip?

Needed to clean the inside of the Windshield. Could never get normal glass cleaners not to streak. Tried using windshield washer fluid and it worked better than anything else I've tried.
The washer fluid with "De-icer" around here doesn't work for crap. Tried an old can of
De-icer, no better. Found a simple mix that works SUPER. Mix one part water with two parts Rubbing Alcohol. Give the thick frost or Ice a good spraying, wait a few seconds and then turn on the Wipers. Run the Wiper long enough to remove all the liquid or the Alcohol evaporates and the remaining water will freeze again.
Mike