Never, ever use the campground wifi for anything that you wouldn't be willing to openly discuss with all your neighbors. Granted, they're probably not paying attention but it only takes one.
And... when you do use your cell hotspot for anything sensitive, make sure the beginning of the URL is "https" (meaning encrypted) and not just http.
Lastly, rather than simply clicking a link in an emailed statement, it is always best to go directly to the site by typing the address in the bar at the top of a new browser window. This takes out the threat of a bogus email. When you're done with that transaction, log out, close the window and open another one for your next transaction.
