I've tinted windows on a 97 Civic and a 90 Maxima a number of years ago. If you're going to do it, the best way to do it is buy good tint, buy a kit to apply it and make sure you have patience on your side. I taped wax paper on the outside of my side windows(front and back) and cut the shape of the windows out w/a razor knife. I then taped the wax paper to the tint and cut out the tint to fit the glass. The very back window is a HUGE pain in the a$$. After doing the second tint job I vowed to never do it again. There are methods to use to get the bubbles out. You just gotta take your time. If you don't have much patience, pay a pro to do it.