We've been preparing over the last month for our first trip without any hookups. We should be there in the mountains right now, but another hurricane has postponed things for a while. But, we're prepared now with a 150AH golf cart battery, 100W of solar power, a solar charge controller, and a battery monitor. Plus I've updated my modified copy of Jenn Grover's spreadsheet with estimates of our electrical power usage (which makes me glad we've got some solar to complement the battery), so we can gauge how we're doing with our power management.
Recent questions about my propane tank pressure gauge & its reliability, how I plan to fill the tank, etc, got me thinking a little bit more about our propane usage and how two of the major consumers of electrical power for heat & refrigeration in the T@B will now become the major consumers of propane in addition. Having never used propane for anything but the stove before, we've still got nearly 2/3 of a tank after 8 trips over the last year. And, BTW, I also keep a "Grill Gauge" hand scale for more accurately checking tanks by weight when needed & it agrees roughly, for now, with the pressure gauge.
We also have a spare 20-lb propane tank previously used on a BBQ grill, and currently about half full, which we plan to carry with us in a special tray carrier which holds it upright with bungee cords. From what I've read of other's experiences, we expect these tanks should get us through a 4-night, 5-day trip. I do like being prepared, but our local propane filling station requires an empty tank, so I won't be getting either one topped off.
We will be bringing a couple of extra 1-lb cans for the Q1200 grill. We've got an Y-connector on the T@B tank for an optional hose to the grill, but probably won't make use of it for this next trip, since there will already be 3 appliances running off of that. I have ordered these two new propane tank adapters which I thought could come in handy with regards to both running out of propane and filling empty cannisters..

The "steak saver" propane adapter could be handy if the T@B's tank runs out at an inconvenient time (did somebody say it's always 3am?) or a spare is not readily available, by allowing connection of a small 1-lb canister to buy some more time while getting running again quickly & more easily.
The second adapter will allow you to fill an empty 1-lb canister directly from a 20-lb one, if your grill runs out and you don't have a spare (or to be more economical & recycle/reuse the cannister). I would also add a brass screw cap to a refilled one or any on hand for protection.
So these are my latest "propane on the brain" thoughts. 🤪