I have put all my stuff in a cellphone bag. There's a lot of space inside, it can be carried in many ways (it has a belt clip, a loop, it fits into a large pocket). It looks totally unsuspicious (no "are you nuts carrying..." problem - maybe just "why do you carry two cellphones"). Unlike tins, it can be always opened and closed back. The only problem is that it doesn't protect the gear from water and mechanical damage.