Softtop Protection

So, the other day I decided to go all out and spent the afternoon washing then waxing then came the task of applying 303 protectant to the soft top. I had read about several tips and tricks around the web but even for all of that, I still seemed to get the protectant all over. My main concern was the rear window. Beyond tapeing it off like I was going to paint the top, how do you guys keep it off the glass and if it gets on the glass how do you guys clean it off. I got it off of the glass pretty well, but there are places that look like I've taken a hard plastic rod and struck across the glass leaveing a thin impossible to remove streak...

i put on to towel first then wipe on clean the wind a damn good glass cleaner my minds blank right now on the best stuff to use ill come back to you when the name comes to mind lol