After reading about Joey's predicament about her cilantro going bad a couple of days after making Crab Creviche, here's what I should have advised her:
Before storing the herbs in the fridge, place half of a paper towel in the plastic bag. It will help regulate the humidity. Change every 5 days.
I like it fresh!
Paper Towel Technique
I do this for my favored shallots and sometimes I can extend their refrigerated life up to 3 weeks! It works for lettuces and spinach too! For boxed salads, empty the box and place the halved paper towel on bottom and refill with leaves.
I hope that this trick will help Joey make me more Crab Creviche! :P