Crucible and Vanguard Marks (And Commendations)

[Shimus]

I maxed out my marks and commendations just keep pouring in from ranking them up. I've started to store all commendations (I never, ever, need them - but who knows they may become useful) - and I spend my Vanguard marks on shopping materials from the quartermaster (Spinmetal, Spirit Bloom, Relic Iron, ETC).

I save Crucible marks for the various factions around Tower and I just buy cool stuff from them. Barring that, if I have everything, I'll just spend those at the Crucible Quartermaster for more shopping materials.

What do YOU do with them?