Right now, my right bar stretches two screens down on the right (when in 3 column view; in 2 column view the sidebar is probably up to 3 screens). Some/a lot of the content in the bar is due to extensions that would normally be wrapped into the "More" tab in vector; some of it is the still-totally-non-standard-categories rendering. :)
Is there a way to get some of the stuff in that column into some sort of flyout like the More tab or like the groupings in Monobook?
Problem made worse by adding tools like admin-set of Twinkle and the "MoreMenu" gadget, which has finally prompted me to leave a comment on the point.