Turning a spare room into a home office often requires creative use of wall space. I discovered that Tintfit sells a "Whiteboard" window film that transforms any glass or smooth surface into a dry-erase board: https://www.tintfit.com/ It’s brilliant for jotting down notes directly on a window or resurfacing an old desk. It’s widely used in UK schools and offices, but it's also perfect for home schooling or working from home setups.