Any ideas on how to get the film from the Windex off?
You used the name-brand Windex and it left streaks? SUE! No but seriously, in my experience, vinegar works better than the off brands, but Windex shines! I have never had problems with Windex streaking, only the offbrands. If there are streaks with windex, it's cause it isn't clean and there are oils left to be rubbed off, and it usually takes elbow grease.
Carputer status: [-*---------]
Im thinking laptop...
You guys are brave. I personally would only use a GOOD microfiber cloth and water. It will get anything off that you could possibly have on your screen from normal use.
Windex, vinegar, etc are all not really 'designed' to clean plastic surfaces. If you really want to use a cleaner, use maguires clear plastic cleaner, and/or clear plastic detailer/polisher. Another plastic cleaning product I used is called brillianize. It also works good at cleaning clear plastics and leaves a very anti-static "smooth as ice" feel.
If I remember right, windex is NOT good to use on any sort of monitor as it will destroy any anti-glare coating. I'm not sure but straight rubbing alcohol may do the same (I'd dilute it). I use a small microfiber cloth that came with my watch (I use it for everything but the watch, it seems), and it works like a charm. Picks up all the oil with no problems.
The only problem is that I'm not sure where you'd normally get them. It's possible they carry them at eyeglass places. I did a quick bit of searching so here's a couple links: answers.google.com:microfiber http://www.neatitems.com/micro.htm
Please understand that I've never used the neatitems store, but they sell the microfiber 'optical' cloths for a couple bucks. Might be worth a try, they're really handy especially if you wear glasses.