I think everyone has hit the basics so far.
You wanted some pics.
Here you go.
One for the flight line and one stays in the back of my Cherokee.
Props, glowplugs, extra bolts, xacto knife, starter, charger, extra batteries, fuel, allen wrenches, radio, fuel tubing ...

Bill

BTW: Used a cheap pistol case from Walmart to hold my radio. I only spend a couple of dollars. I would highly recomend this to anyone. It makes it so much easer and safer to carry your radio.