If you’re anything like me, you’ve probably had your share of derpy moments with those awkward and often embarrassing times when your face turns red and you let out a nervous chuckle.  If you were anything like me during middle school… well, let’s just say that those moments did not make the sixth grade very pleasant. The most recent example of this awkwardness happened on a trip to the grocery store with my roommate.  While he paid for our breakfast items, I decided I’d pick up a deck of playing cards. So, I walked up to the cashier—a friendly, cute looking gal—and armed with my best smile and confident charm, I placed the card pack on the counter and said, “Just this today.”  She smiled at me and said, “Alright, credit card?” For a moment, my brain fritzed out and screamed at me, “No cash?