Savage Wombat
Hero
Wouldn't the 21st century solution be to allow players to retrospectively declare what the character has when it's useful for the story? c.f. "Preparedness" in the GUMSHOE system.
Doesn't suit the "physical model" school of players. In my games (frex) I'd rather the rules have a specific power or feat that allows for such a thing (like Batman's Omni-Gadgets) instead of it being a universal rule "just 'cause".