yeah, also, you can carry hairspray and such, and if you're planning a robery you can bring in a gun
if it is not open
Yes.
Certainly, I only travel with carry on and there's ever been an issue with jewelery in there.
It depends on the airline carrier. Not on a carry on USUALLY but sometimes you can. on southwest you can Absolutely NOT, it is too big to fit on the overhead compartment, so they will not allow you...