Throw out the manual
The typography and layout of settings panels have always been my favorite parts of a project to design.
One of the tricky parts about these interfaces is the balance of description text and instructions. The more you have to explain, the more effort it takes to use the features.
The recently designed Bulk actions interface in XFtoWP 1.5 beta has a simple interface, but the most instructions I’ve put on a tool in a long time:
I’ll update this with some more thoughts later.