Playbar locator button
How about a button which when press moves the timeline so that the playbar (where ever you left it) is centred on the timeline panel?
I often scroll around the timeline for reference purposes, then can't remember where the heck the playbar is and I have to frantically scroll left and right (which can be frightening given the size of the timeline) hoping I don't accidentally click on something other than the scrollbar with the possibility of ruining my work by accident.
In after effects, the shortcut for this is D.
In premiere, I will use keys to zoom in and then out again, or double tap the spacebar.
I too would like a proper shortcut, though.