I found a way to buy sock yarn without buying it. Getting it for free! I noticed I had a credit of $8.11 at Jimmy Beans Wool that was going to expire at the end of this month. I wanted to use it but didn't want to spend any money, so I found this lovely sock yarn, Schoeller Stahl Fortissima Mexico Extra Doppeldruck (say that 5 times fast). On sale for $8.95, it cost me 84 cents, plus shipping. At 440 yards per ball, one ball is enough for a pair of socks.
My friends, it does not get any better than that. It will go to the bottom of the stash, where I'll get to it sometime this fall. It will make lovely socks, which will forever be known as my 84-cent socks.