When I used up the second ball of yarn for Stephanie's scarf I checked the length. It was longer than I am tall, and will probably stretch more when I block it. Usually you make a scarf as long as the wearer is tall and I am a bit taller than Stephanie. I sent her a quick email to see if she would prefer a very long scarf or a ridiculously long scarf. She chose very long, and I offered to knit a hat with the remaining yarn. This is the hat, as yet un-blocked.
Blocking is a process where you wet down the knitted object and stretch it to it's final dimensions. Depending on the type of object/garment you are blocking you will stretch it more or less vigorously, using one of many stretching/wetting techniques. This guy was supposed to be wet down and stretched over a dinner plate. The hat seemed smaller than a plate while dry, but once soaked, it grew on it's own. The hat is now larger than a dinner plate, so I didn't bother with it. I simply shaped it by hand on a towel. Blocking smoothes out all the bumps and wrinkles you see in these pictures.