Things that you should not carry when traveling.
1. Aerosol Bottles, like deodorant.
2. Propane Tanks
3. Any kind of fuel. Kerosene, Gas, etc.
MAYBES
1. Cooking oil.
2. Shaving cream in a dispenser.
AIRPLANES COMPLAIN ABOUT
1. Any weapon
2. Knives in your carryon
3. Butane Lighters