"...Yep, and informing somebody if you change your travel plans while enroute..."

That is probably the hardest thing. Before we retired, my wife and I took many road trip vacations, and we are great for taking "side trips," and traveling with no real destination in mind, other than "Arizona" (or where ever). We would be going down some highway, see a sign for something interesting on some side road, and off we would go. And now we live in a motorhome, volunteering three months or so at some state park, then moving for a month. No one, us included, really know what route we will be taking on any given trip, other than in the general direction of our next "job."

We often go days,or longer, without talking to family, cell phones don't always work in the boonies we find ourselves in. So we were on our own. But we always have enough stuff with us to survive in relative comfort for several days, and with a little tummy shrinkage for weeks. Longer if we get stranded in the RV, 'cuz it is always fully stocked when we travel...