At 28 years old I'll be sticking with my tried and true outfit of 'man who doesn't give a fuck'. The level of detail is astounding.
Seriously though, one of the few benefits to living in my tower block, aside from the prime sniper's nest on the balcony in case of zombie apocalypse of course, is that you need a key fob to get into the building. Meaning it's borderline impossible to be irritated all season by trick-or-treaters, which around here are never innocent young kids just out for the fun in homemade costumes, it's always the local 17/18 year old chavs trying to trick people into opening their doors to they can bust in and rob the place. Even so, I'll still be putting up the traditional sign on the front door saying 'Trick or treaters will be shot'.