I'm building an "oh shit" kit for That Which Gives Me Sex. She's in residency, so it's stuff like phone charger, coffee press, etc. I noticed I have water, a book, a leatherman tool on me every time I leave the house thanks to lessons learned in Peace Corps. For me, I had a piece of shit car that caused me no end of trouble. So, my OSK was born by necessity. My car OSK includes any manner of implement I can theoretically use to un-fuck a car problem as it sits: jumper cables, oil, antifreeze, tools, jack, blanket, window ice scrapers, etc. I recently added an overnight bag to compensate for me going to the gym without work clothes or forgetting socks. It also has a first aid kit, emergency asthma meds, a flashlight that can signal the ISS, tp, tow chain and a lighter. Focus: What's in your "oh-shit" kit? Why do you have one?