It's a fact of living in the United States that most everyone carries around a checkbook, but many people simply place their checkbooks into a briefcase or ill-fitting wallet, causing the checks to become wrinkled and torn.
Not only are they not appropriate for a number of occasions, but they are known to cause the dreaded "muffin top" (which can happen when the top of your stomach bulges over ill-fitting jeans).
Likewise, men should not wear ill-fitting clothing and should ensure they are properly groomed, so as not to appear as though they could not put forth the effort to be presentable for the occasion.
It's far too easy to discern an ill-fitting shirt in the crowd; we've all seen the guy with the baggy or folded sleeves, and no one wants to be in that situation, especially in a formal setting!
Buying quality panties saves money over time and provides the best return on wardrobe dollars because ill-fitting, low-quality underpants lose their elasticity quickly due to repeated washings.