Perhaps it's a legacy of my background, but I often find myself wanting to position and rotate objects from their center points :)

Probably my default way of working, unless I want to align something with an edge of another object, etc. (whereupon the default MoI style is perfect)

Sorry Michael, I feel like I've been asking for so many feature requests over the last 24 hours! Just thought I'd post some of the things I'd been thinking about since learning MoI :)