http://us.battle.net/wow/en/blog/2053469#blog
All of us should read this. The part I found most interesting: He specifically says that we should be using less expensive enchants, gems, and flasks (specifically, Wrath flasks); food; and whatever other buffs to run heroics at this time. Honestly, I hadn't thought much of using "ghetto buffs" to make the heroics more approachable without being insanely expensive.