Knit Picks Felici in colorway "Pebbles" (now discontinued), but I kind of renamed it "cocoa pebbles" because it looks so chocolate-y.
These were knit cuff-down in Charlene Schurch's "uneven rib" pattern. The toe is a star toe and ends in 6 stitches. Instead of doing the purse-style closure, I kitchenered those stitches. I thought it would result in a nice tight toe like the one you get with the figure-8 cast-on in a toe-up sock. It's a little nipply, though. I'll have to wear these and decide if I want to do that again.
I reinforced the heel by running yarn through the columns of slipped stitches on the inside of the sock (Cat Bordhi mentions this technique in New Pathways for Sock Knitters, Book One). It's easy to do, and I think it does make a difference!
All told, these socks took about a month to knit - but I only knit on them at work and the occasional weekend social event. That's like getting extra hours in the day!