I also wanted some hazlenut coffee, so I packed a thermos of almond milk and bought the right to fill my own cup. (Almond Milk Trick) Bonus: Bringing your own cup saves money. It was only $1.89. This hazlenut coffee is a new discovery to me, and I'm pretty sure it's bad news. I usually stay away from caffeine, and coffee makes me jittery and crazy. You can imagine how I felt after sitting at Panera for 3 hours and downing the equivalent of three cups of hazlenut coffee. But, every sip was wonderful.
I also packed almonds and Lindt 90% dark chocolate that I didn't end up eating, but those are easy study snacks to pack on-the-go.
4/12/2014 Update: It's another Campout at Panera day. I brought a thermos of almond milk, a salad and an avocado (cubed). For breakfast, I ordered an egg (only $1.00) and ate it with 1/2 of the avocado. I also ordered a "travel-cup" refill of coffee and put it with the almond milk.