Your asking the wrong person.
I too struggle with usability in anything I do,in such circumstances I often draw
upon the experience of others who have greater understanding in this area.
Take some of the new sc2 tools as an example.
The amazing functionality in sc_trans,is not matched by usability.
I would stick my neck out and say very little thought went into usability,because
of the time spent with the "magic under the hood".
Find somebody who is good with gui presentation/layout and bring them in to help out