United StatesBetween cities, the map is mostly space
Distances in the United States are counted in hours rather than miles, and the drive between two famous places often crosses a great deal of nothing in particular. Out west an interstate can run a very long way between gas stations, and the scenic highway branching off it longer still. Many national parks tell visitors plainly that phone service inside is limited or absent, and it is worth believing them: canyons, forests and mountain passes are hard ground for any signal. Plan the quiet stretches rather than discovering them. Download the park map and the route while you still have coverage in the gateway town, note where the next fuel is, and send someone your plan before the bars disappear, not after.
The ride and the flight both live in an app
At most large American airports you do not find a ride so much as get assigned one. Rideshare pickups happen at a designated zone, sometimes a level up, sometimes a shuttle away, and the app matches you to a car by its plate number and the driver's name while you walk. The fare is quoted before you confirm, and it moves with demand, so a rush of landings can push it up. Domestic flying works the same way. Your boarding pass is a code on the screen, the security checkpoint can scan it straight off the handset, and a gate change often reaches you as a notification before you have even found a departures monitor.
Free wifi usually wants something back
Hotel lobbies, coffee chains, airports and malls all advertise free wifi, and most of it opens onto a sign-in page first. It might want your email address, a loyalty signup, your room number and surname, or thirty seconds of advertising; some networks cut you off after a set time and offer a faster paid tier. None of that is sinister. It is simply slow at exactly the moment you need speed — a rideshare car pulling up while the login page refuses to load — and a shared network is not where most people would choose to open their banking app.
Crossing a line on the map can move the clock
The mainland alone spans four time zones, and a road trip can cross one in the middle of an afternoon. Most of Arizona also skips daylight saving time, so in summer it keeps California's clock and in winter Colorado's. A handset with a live connection will usually adjust by itself. A tour's start time, a hotel's check-in window and a rental car's return deadline are not so obliging, so confirm which zone each booking means before you set off.
