Best Coffehouse hands down. If you want coffee or tea, they have the best... don't go to Dunkin or Starbucks, this is where you want to be.
They have a really great iced tea you should try.
They have many cute artsy tables and many wall plug outlets on the wall so that you can charge up your cell or use your laptop while you're there, just bring charger.
They even have a vegan gluten free muffin. I recommend you go as much as you can.