One word: Morakniv
I like stainless for survival purposes. At < $15 each they are a phenomenal buy. Sharpest knives I have ever seen right out of the box. I have, quite literally, shaved my face with one of these as an experiment, and while it doesn't do as good a job as real razor, it does the job. The edge is durable, too. For the price, you won't find anything else remotely close to this quality.
They're so inexpensive that I have them everywhere - my truck, wife's car, the bike, the BOB, bedside table, garage, my hunting backpack (in blaze orange, no less), camping kit. I build little survival kits for my (adult) kids' cars and always include one of these as well. For $15 I just add one to an Amazon cart occasionally when I'm buying something else.