I find my streaks on the inside are normally vertical.

When we had my wifes Grand Prix GT windows tinted last week (see the "your ride" forum) the tinting place said to clean the tinted insides of the windows using Windex and paper towels.

Two thumbs up for using horizontal strokes on one side and vertical on the other. That makes it really easy to tell which side you have streaks on.

Also, on the *outside* (I know he said his streaks are on the inside) I tried RainX and products like that, but in the end I've become a big fan of pristene, clean glass with nothing on it. Car washes that spray wax all over your car leaves a layer on the windows. Cut right through that using Windex or other window cleaner with ammonia. I know some people wax their windows. I don't. Just windex! And clay bar your windows, that works well too!

stoners invisiable glass and newspaper. Never any streaks, the first time.

Really works well!!

I third that opinion. Stoners is the only thing I use on my windows.

A glass company gave me a can of Spray Away when doing a windshield...it is good stuff as well.

Never heard of Stoners. Autozone or Wal-mart?

Seen it at Wal-Mart. Bought some. Worked good. Long time ago. May still have it. Haven't looked since at either Wally or AZ. I don't use anything but water on the inside. Damp rag and dry rag, clean damp rag, clean dry rag. 4 rags total. I don't trust anything but water on my tint.

i agree on that one......

also newspaper is awesome to clean windows with, for the outside that is

Not sure about either one,I know Advance carries it.