For my living room I painted blue circles in the intersections with smaller gold circles in the centre
So lets say you buy a house with ruined carpets( my case, dog pee and poop) and you don't want to put new carpets in for a few years. Painting your plywood floors is a cheap alternative. And gets quite the attention . Great for a clumsy person who always spills or kids.
Here are my living room, stairs, bedrooms and hallway. Sorry aboot the sideways pictures and low quality pictures. Have fun.