Tried tinting my windows today. guess its something i just dont have the nack for. besides i got 20% tint and after putting it on you could barely tell a difference . . I only did one window, i traced it from the outside soaked the window and applied it on the inside, it stuck and all but i could not get the air out. i guess this is something i should leave to the pros. im sure with enough practice i could get it right but i would be buying more and more sheets trying to do so..... this is something that if you want to try and do it yourself, go ahead, but if you fail ... just bring it it. lesson learned !