Disabling bluetooth at system boot (or desktop startup)

Hi
I don’t usually use any bluetooth device, so I’d like to disable it by default on CLR (while allowing to set it on, very occasionally). Searching for this on the web shows plenty of different solutions and it seems it’s a common pain point for several GNU/Linux users. Is there a recommended way to do it on CLR?

Use the Gnome UI elements to disable it. It should stay disabled.

Hi. Clicking in the upper-right menu, I can indeed deactivate Bluetooth but it does not stay disabled.