What about changing it in the car? I do that when we are traveling and aren’t in a hotel room, for the same reason, I don’t want to waste the insulin, if I don’t have too.
I typically change my OmniPod and Dexcom at home. OmniPod gives me a four-hour notice (a setting we select). And, Dex gives a notice too. So, I can plan ahead for both of them. I’ve had failures also, which force me into changing outside of home. I recall my pod failed just after I arrived at another persons home for a meeting. I was about 30 minutes away, so I couldn’t just run home to change it out, so my husband brought a pod to me. If we travel further than that distance, I will pack three pods, a dex, and supplies.
You just reminded me that I have to change out my Glucagon kit from my dbag! Otherwise, I don’t have any insulin, pods, dex, supplies stored anywhere else. I do keep them in a closet (or refrigerator), away from any sunlight or heat source. I date everything (mostly) and rotate stock that way. It’s nice that OmniPod and Dex both have order reminders and I order my insulin and other supplies monthly.