The easiest way to brain this is to line up cards for the Environment/Villain left to right(and break into rows) in the order they come out. Then when executing you go left->right Top->Bottom just like reading. If a card brings out a new card it goes at the end, which means it is now a part of the 'text' and must be activated when you get to it.
We definitely do this. It has the added bonus of getting to physically shift cards when you wallop something and take it out of play. :-)