I have always used the 1lb disposables and even have a filler valve for them.
But, last year we got a 5 lb bottle. As we have a fire pit now!
We carried it in the back of our TV.
With my new build I plan to install the 5 lb bottle in the front tongue box with a hard line to a quick connect coupler in the rear of TD.
I do plan to continue the practice of carrying one lb bottles for their convenience and special place in our camping style.
Good Roads
Brian & Sandi