I've been plugging away at the Houdini Socks all last week. You start a toe-up sock, but instead of turning the heel and going on the the leg, you just make a another toe at the opposite end of the tube. Then you use your circular needle to pick up and secure a line of stitches at the top of the sock.
You skip a row and thread another circ next to it. And then you take your tiny sharp scissors and you give a snip to that center tow. The two needles protect you entire sock from unraveling, but you just pick out that middle row. Predictably, it makes a big hole but that's where your foot goes so you need a bit of clearance. The second "toe" becomes the heel. Your stitches are already threaded on the needles, so you just start knitting away on the cuff. Genius, no?
I'm not sure how it will fit my foot yet (some heels tend to fit me better than others, and I don't know until I try them on and give them some wear) but I'm really enjoying knitting these. Cutting my knitting apart wasn't nearly as nerve wracking as I thought it would be and it's good practice for when I choose to do something with serious steeks.
Autocorrect just tried to turn the word "steeks" into "steaks", so now I'm hungry.