I couldn't help but over-hear two guys in their mid-twenties while sitting at a bar.
One of the guys says to his buddy, "Man you look tired."
His buddy says, "Dude I'm exhausted. My girlfriend and I have sex all the time. I just don't know what to do."
A seasoned fellow about my age, sitting a couple of stools down had also overheard the conversation. He looked over at the two young men and with the wisdom of years says, "Marry her. That'll put a stop to that shit."
Put a jar on the night stand next to your bed. Put a $1.00 in the jar every time you have sex. On your wedding night you will remove $1.00 every time you have sex. Upon your death your grand children will wonder why there is a jar full of $1.00 bills next to the bed.