Keep in cahoots with the Midland 30-Mile range radio set. Lithium rechargeable batteries, NOAA alerts and 36 channels, so you can maintain the communication your couples therapist yammers about while keeping your distance.
When you’re on the run from CHUDs, it’s not always practical/sanitary to pop a squat. Luckily, science has gifted you the ability to pee standing up. The Faza hydrophobic pee-funnel is reusable, sanitary, and biodegradable. Alternative use: destroy the sexist stranglehold on writing your name in the snow!
Assuming the GPS satellites are still overhead, accurate location and heading will be one of the few creature comforts to survive The Happening. The Bushnell Backtrack can store 3 locations, clip to your bag, and runs on easy-to-source AA batteries. Don’t get lost without it!