Being edgy can be of benefit. Particularly when you are taking care of wallpaper. We took down, this weekend, wallpaper that had been on the wall of the bathroom for 14 years. Lyman languished when his application of cold water to edges wouldn't take the stuff down. On instruction, from HGTV, we were to spray the paper with warm water and work from the edges. After our original assault, Lyman lost faith. He thought we should rent a steamer. What a child.
A mild application of warm water at the edges, with an assiduous application of a scraper took down the wallpaper within an hour. I worked from the edges, patiently, as they softened.
As an aside: I want to establish an organization called "Decorators Without Borders at 8 Feet or Less".