Alright, my story is next.
Every swinging d!ck in the country, at the age of 18, in my opinion should have a vasectomy. It takes only 20 minutes, is reversible, and is a good excuse to work from home.
The secret is being prepared. Take along a ziplock sandwich bag of ice and wear a jock. Ice and the Jock Strap are going to be your friend for the next few days. My procedure was done with a hole punch and not a scalpel so there was nothing to suture before leaving. Your local anesthesia will wear off in 40 minutes or so, so if you didn't bring the ice and you have a long drive back to the house, you will be in pain.
Keep your balls on ice for 4 to 5 days and you can avoid the nausea effects mentioned above. The jock keeps your package 'out in front' keeping your legs from ruining every moment of your existence.
When the conversation of sex comes up in future encounters, mentioning a vasectomy goes along way in a achieving satisfaction. *cough*