If this has been covered in a lesson please let me know.
Since I've lived in the states all me life, I'm used to driving all the time, and just having everything I need in my car. When I went to Germany for two weeks, I walked all the time. I really needed a good backpack to put in my water, wallet, camera, and anything else I might have needed.
Can you do a lesson for other Americans of what exactly do you need, and what kind of backpack would be good to take everywhere?