Whenever I leave the house, here's what I take with me...
1. Keys
2. Pocket Knife-after reading The Black Stallion with the kids I started carrying this again, never know when you'll need it, but it will come in handy.
3. iPhone-with case from society6.com/paulmccreery (shameless plug)
4. Water-a necessity in Texas
5. Field Notes-I try to draw at least a little bit everyday
6. Uni-ball Signo UM-153 pen-this one's orange!
7. Wallet
8. Rx Rayban aviators-I can't see so good