Never? Once in a blue moon? :P My hair is very healthy, my products are good, I don't need to DT.

When I got the wretched salon highlights last year, I DT'd every few weeks though. But now that they've grown out and I do my own, hardly ever do a DT. And then only because it's sittin' on the shelf and I might as well use it!

SF Bay Area, CA * "The Angel-Goddess-Guru of Haircoloring"
3b/c/a mix. medium texture, low porosity
My Motto: Strand Test! some hair pics
-- gone, but never forgotten.