Yeah, I do something similar to Andrew; bought a few IKEA tradfri buttons and remotes, and set them up to toggle lights or media in various rooms.

Is there a reason you wouldn’t want to just get a zigbee/zwave/wifi smart outlet switch?

I was going to suggest this too. A magnetic white board on a conspicuous wall in a common space. It’s what my wife and I use for her cottage food business. Whiteboard marker, post-its, or notes affixed by magnets.