Job action cards stay out until fully resolved. But other card effects that last for the duration of a phase (noon or shootout) are immediately discarded (and possibly reshuffled, etc) before their effects expire. I have seen tokens to track these state changes for:
So, the point of this thread is to brainstorm additional effects which might be considered token-worthy. Off the top of my head:
Hidin' in the Shadows
What else might be useful?