I need to remove the tint from my windows

Scrape it with a razor blade from top to bottom and get tint wet with water first if needed. If done right, you should be able to peel most of it off.

Soak it with a spray bottle of water and use a Lisle 52000 Razor Blade Scraper (available at Sears)--it should come right off.

An amomia based window cleaner helps cut the adheasive as well... but as was stated... you really need a scraper that uses single edged razor blades. Don't try it with any other type... you will likely scratch the glass.

If it's really stubborn, park the car in the shade, coat the tint with ammonia, cover with Glad wrap, allow it to sit until the tint has softened, and scrape off.