DON'T: Forget to call home if you're going to be late at the office.
This is common courtesy. But, it also lets your significant other know that you're considering their feelings. It may seem like a small gesture. But, at this point, you should understand that just about everything on this list involves small gestures that make a big difference. So, if you're gonna be late—or you're out with your boys later than you expected—give a call and let your partner know.