Inspired by @lizabeth
  1. Pens, and a new notebook
    Living in your bag for the month, has undoubtably broken your last ones.
  2. Sheet music to a song you can't quite play, but will enjoy trying to play, and consequently analyzing the entire piece
  3. Some old, possibly-ratty, character-filled piece of clothing or jewelry
  4. A science fact I probably heard on Radio Lab, jotted on an index card, the reverse of which is fully covered in stickers
  5. Pictures of dogs smiling
    Probably several hundred of these.
  6. A few farm-fresh fruits and vegetables and a challenge to cook them in interesting ways.