Where/How best to attach your CAA Operator ID label?

Out of interest… where on the drone have you affixed your operator ID? I have seen on the side or top. I put mine on the top but I believe that you can also put it in the battery area providing you can get to it without needing tools to remove the battery.

The reason I ask is that I deliberately fixed mine on the top so people can easily see the operator id number if they want. I feel better if they can identify me as I will only fly if I believe I am legal so making it easy for others to see my ID makes me feel less as if I am doing something wrong.