Have you ever re-invented the wheel?

Have you ever been pleased with something you thought you came up with, all by yourself? I have been using a graphic organizer that I thought I had invented when I was a student teacher. I call it the study wheel. Apparently, it is better known by everyone else but me as an idea wheel.

I discovered this on the internet today, while looking for some additional graphic organizers. I feel humbled, and a little annoyed.

I am still going to call it the study wheel.