Consistency...

I'm compulsive about my workouts.  I'm compulsive about my diet.  I'm sure it goes back to some emotional beating about my weight the school bully doled our, or some rejection from a girl I on whom I crushed hard.  Either way, I can't remember, but whatever psychological injury I've sustained, the result is a compulsive dedication to my fitness program and my diet.  Don't be like me.  Be consistent...but don't be like me.

It's important to realize that someone who exercises twice a week every week will be in better shape long term than the guy who exercises five days a week only during the summer.  Consistency is crucial...but not crazy consistency.  Missing a workout here or there in favor of a trip with friends, or dinner with your spouse, is perfectly acceptable, even encouraged. 

You're not going to get fat in one day, you're not going to lose 10 pounds from your bench, or 30 seconds from your mile time, in one day's time either.  Moral of this brief parable?  Exercise several times a week, at least, eat clean almost every day of the week, but give your body some rope and it will give you results.