I always carry some sort of small backpack or manpurse to a show like Blade (haven't been to blade, but use to frequent the huge 1500+ table gun shows) so I can keep my hands free while still acquiring some goods.

JYD #123 The great one formerly known as Architect.

I am now a fictional British television police officer (currently a Detective Sgt) at Thames Valley Station. My governor is Detective Inspector Fred Thursday and it’s 1969.