What's the easiest way to find out what a bunch of different drugstore and grocery store chains will charge for a specific med? Insurance doesn't cover it, so I'm looking at the out-of-pocket cost, which seems to vary wildly from place to place. I don't just want to know who has a general reputation for being cheap — I only care about this one med. Am I stuck showing up and trying to fill it a bunch of different places, or is there a way to do price research ahead of time?