Easy Way To Enable A Certain BoxCollider2D?

Hey guys, my second question on this answer site is an easy way to enable/disable a certain BoxCollider2D. I have 3 box collider's on my Player, two are enabled while one is disabled. I want to be able to enable that box collider2d whenever I want in the Player script, and of course be able to disable it. So how can I do this? I'm looking for a easy/simple 2014 method, as there are many methods out there but most are a little outdated. Sorry for asking a question that's been answered a million times.