it';s so easy and took me maybe 30 minutes to do all 4 doors. You take dental floss and you run it one tip of a molding until you can get a grip on it, then as you pull up on the molding (gently) you keep working the dental floss, and almost no residue stays on. I did this last fall, it wasn't scorching hot out, but it also wasn't freezing out. Took me 30 minutes, maybe a couple little spots of residue left, that I took off with windex and a paper towel and it looks great!