Floss each day. Have sex when you have the time and the emotional energy to fully indulge your partner and yourself and do it right. This shouldn't be like exercise where you do it everyday to stay in shape. This should be something special, savoured, a treat. In fact a little denial heightens the pleasure when you do finally dive in.
The preceeding comment of course refers to sex with a partner. If you are alone, then at least try not to get caught in an elevator.