For you gals with compacts, how many gears do you actually use?

With my triple, it's the bottom 3 on the small ring, all 10 on the middle ring, and the top 4 on the big ring.

It's not just the range that counts, but also how many different gear choices you have within that range, that will allow you to spin your desired cadence. Even one tooth on the cassette makes a huge difference in cadence and comfort.

I've never actually done a spreadsheet to see how much overlap I have in the gearing, but those are the ones I actually use.