I like this. My list is pretty much like this, with some idiosyncratic additions, such as:
- Power strip for use in sessions
- Moleskin to prevent blisters
- Notebook and peripherals
- Luggage scale
- Reading material
- Decent laptop bag, 'cuz the jury's out on how robust the conference bag is
- One collar shirt, and a couple of t-shirts; the rest of your wardrobe you can quickly score at the conference.