[Skyboi]

Yeah guys, always start with the least aggressive method first. This way you won't run into as much trouble.

Here's the direction I'd go to get things off glass:
1. regular glass cleaner with a good scrubbing
2. Vinegar water mixture
3. Clay bar with a soapy water mix
4. 0000 steel wool (called 4 aught)
5. razor blade
6. Buff with a wool pad and light glaze.

Also...Get your wiper blades out of the way...Some cleaners will deteriorate the rubber and you won't realize they're screwed til you need them.

Hope this helps.