I've said it time and time again, but if there is a cleaning product that promises to make the job faster, slicker, easier, more fun, I'll try it! I'm a marketers dream in this area! It doesn't take much. But, the benefit is that I've done a lot of "research" (i.e. wasted a lot of money) so, please use this to your benefit!
Here are two things that I've found that have really saved me. You should really try them. The first is a Scotch Brite cleaning towel for windows. Sinply dampen the towel with plain water and wash your windows and mirrors. Streak free and amazing every time. I love that fact that I'm not spraying chemicals, and the towel is re-useable. I got mine for less that $4 at Target. The one pictured here is yellow, but mine is blue. Look for it the next time you are out. You'll thank me time and time again.