3.P Gameplay House Rules+Free Action chaining

Players are encouraged to keep to a reasonable number of free actions per turn.  Each free action of the same type after the first may come with an additional action cost. 

For example, a character trying to identify several different monsters on the battlefield as part of the same turn might spend a free action for one Knowledge check, a swift action for their next check, then a move action, and finally a standard action for their fourth knowledge check to identify a monster. 

This is mostly meant to limit infinite chains of free actions, but effects that expressly allow multiple free actions of the same type each turn are unlikely to be impacted.  Check with the GM before planning to execute multiple free actions in the same turn.