Went abroad by aeroplane for a night recently and travelled light. DH and I shared a bag about the size of a large handbag. It had one pocket on the outside.
It really messed with my head not having a handbag with me. I was utterly anxious about stuff falling out my pockets, which is not surprising I suppose because it's not what I am used to. But I also felt weird about not being in control over what was in the outside zip pocket of the bag and what was in the main bit. I put some mints in there at the airport and was unrelaxed about not knowing what criteria was being used in filling the outside pocket. 
I don't think I'll do it this way again. Would you cope?