Today's deal scores you 20 medium, 12-ounce cups of coffee for $15 (a $35 value) at Germantown's DrinkHaus. Bring your Groupon into the store, five minutes from the heart of Nashville, to receive a punch card. The card entitles you to one coffee, and you can use up to four during each visit. So treat a few friends, or cut all that inefficient sleeping out of your schedule with 48 ounces of steam-pressed espresso blends. Your punchcard expires in three months. Follow @Groupon_Says on Twitter.
