"Sock Yarn One-Skein Wonder" book I am enjoying so much. The pattern called "Shibui Baby Hat and Socks"... I did not make the hat as I did not have enough yarn after making the mittens, but I sure enjoyed making up these little socks. A very quick knit! The pattern link and information about the "Sock Yarn One-Skein Wonders" book is here. Sorry it's not a free pattern, but I highly recommend the book. I am getting my money's worth out of it... for sure!
Right now I am making another pattern from the book called "Horizontal Rib Hat" and I am using sock yarn from Knit Picks (Knit Picks Essential) in a colorway called "Plum Tweed". It's another quick and fun knit. More information about this pattern can be found here.