What are you most proud of? That it actually worked! I love that it doesn't damage the walls either; it just peels off. What advice would you give someone starting this project? The smoother your walls, the easier this is. It's not impossible on a less-than-perfectly-flat surface, but it does take a little more care. This didn't damage my walls at all, but I would still do a little test in an inconspicuous corner just to make sure.