Originally Posted by Chowster
One tip I have would be to not only check the tab positions of the outgoing bulb, but to also mark the correct 12-o'clock insertion position on the ingoing LUX cylinder with some sort of marking tool (chalk?). After fumbling the bulb into the socket, I found I had to re-orient myself back to the correct position.
Posted this tip over a year ago, only used a grease pencil.
In an older LUX thread -