SAKs rule. Huntsman is my EDC. You can harvest firewood with the saw and a small hatchet. The saw is great for stop cuts. The saw back is a great fire steel striker. The large blade I use in the office as a letter opener as well as in the kitchen (when my long suffering wife gives me one of those withering looks, I ask her if she would prefer me to practice with my hatchet). The can opener is a great box opener. The small blade I think would make a good skinner, haven't tried it yet. The corkscrew helps me get PJ cotton out of the match case that it is stuffed into. The tweezers helps me fuzz out the cotton balls. The bottle opener is a great mini pry bar for paint and stain cans. The scissors is a great nail trimmer. The awl is a great pipe reamer.
The mystery hook is a topic unto itself. Lace tightener, pot bail lifter, emergency gutting hook (I have not tried that yet), maybe a pipe reamer (have not tried that yet either), package carrier, tent stake lifter, cordage tightener, knot untier and general sky hook applications.