With the new ruling on "For Each" effects, where each instance should be resolved independently when you have a choice between each instance of a given effect, Carolyn suddenly has a few cards that can give her or her friends multiple resources in one action. Some of these are:
Meditative Trance: You can break even on this event at 2 slots filled, or go higher if you have extra arcane slots for some reason.
Earthly Serenity has the most obvious direct application, especially the upgraded version. Just play it and get a ton of money.
Logical Reasoning can go revenue positive if you have a total of at least 5 horror amongst investigators at your location - not unlikely in some campaigns.
Liquid Courage, sadly, does still have the "additional" modifier on it, so it should still only give carolyn one resource - unless I'm wrong!