Love those hats, got two on the go, one in the car, one under the sleeping kitty. Touch not the cat on the hat! Thinking of extending the ear flap for the whole back of the neck as another poster suggested.
Easy way to keep track of your rows on this hat, if you don't have your counter handy, is to count the slip 3 strands on the back. Each one means two rows done.
That is a great tip.