Heres a tip from a expierience window tinter.. first off all u have to be REAL patient.. patience is the key to anything.. u dont wanna rush.. secound dont use alot of soap water.. but do make ur water sopy.. use alot of soap.. make sure u have a nice little squigi (cant spell) try not to use the cheap plastice ones u need a nice rubberish one.. also use a hair blow dryer to dry up those annoying bubbles.. (CAREFULLY).. that why u must use the right amount of soap water... less water less bubbles.. hope it helps.. PS. CLEAN ur window DAMN! good.. use a nice blade to sorta scrape ur window clean.. cuase lil dust particles can create nasty bubbles..kinda like u take off a old city sticker.. same idea. except ur cleaning ur window.. hope it helps..