When I picked up my car from the dealer service department it was filthy inside and out. Since I was having work done on the outside of the car, I don't understand how the inside got so filthy - it's not like they were working on the seat or the radio or something that could've kicked up indoor dust. I got it washed (outside) but really noticed the inside problem while night driving last night - there was almost a haze on the inside of the windshield, and on the rearview mirror, and it really hampered my visibility. Today I used drugstore glass cleaner (Windex or 409) and not surprisingly it left streaks. I think the streak free advertising is B.S.. What is your preferred liquid for cleaning the glass on the inside of your Crossfire, and what do you use to wipe it - washcloth, paper towel, newspaper? I've even seen people use coffee filters. I'll use anything that will get it streak free.