Do NOT stop at grocery store on the way home from swimming laps. 65 minutes of swimming negated in car on the way home and even ate into the calorie deficit I had going for the day before I went to the gym.
After I get out of the pool, I'm usually munching an apple while blow-drying my hair. Sometimes I tuck a little package of Trader Joe's "handful" of almonds or handful of trail mix into my gym bag. Those help, too.
What I feel after swimming is tired, in a good way, more than ravenous. It took me a long time to figure that out, though.