I almost included a decent pillow on the list, but it takes up a lot of space. When the pillows suck (as they often do), I use a towel for a neck roll.
The solar phone chargers remind me some kind of surge protector is a must if you bring down a laptop. Lost a PDA about ten years back when the charger was fried and it was discontinued. I use the internet cafes myself..
Oh another thing, a dollar store tap light. When you're in a hotel room, the switches aren't always easy to find or near the bed and they work when there is an outage. A night light or two is nice if you have extra space.