I keep about $500 in small bills hidden I’m my car. I have been on road trips where I have had car trouble, and the small town mechanic nearby only takes cash o

I keep about $500 in small bills hidden I’m my car. I have been on road trips where I have had car trouble, and the small town mechanic nearby only takes cash or local checks. When it happened, I had to get a ride to an ATM with an huge fee. I also live in the PNW, which is way overdue for a >9.0 earthquake. I keep some cash in a safe at home because it could be a week (or more) before phone systems are up and working again for things like gas stations, etc.