It's incredible when you finally can understand options you've never used before. :-) Bounding box and active element are game-changing... thank you, Jonathan, for this great explanation. For anyone interested, here is a list of hotkeys (which Jonathan probably covers later in this series!) :-)
Pivot Point Hotkey List (Top to Bottom):
Active Element: Alt + Period
Median Point (Default): Ctrl + Comma
Individual Origins: Ctrl + Period
3D Cursor: Period
Bounding Box Center: Comma
