You learn something new every day

The gold standard of Mac troubleshooting and repair software is Tech Tools. So I was a little shocked to see "Download Tech Tools Deluxe" on the side of the Support Window at Apple (I'm having issues with the power plug on my computer. It's currently plugged in, but running on batteries. If I get it plugged in just so, it works, but if I don't... there's something wrong with the magsafe plug.)

Anyway. Tuns out if you have AppleCare Extended (I don't) you get a complementary copy of Tech Tools. Cool. I never knew that.