When I was in New Orleans a couple of months ago I used an app for the first time called Nowait. If the recent news is any indication, you might be using it soon, too.
As the name might indicate, if you put a space between the no and the wait, the app is designed to eliminate waiting at popular restaurants. For example, in New Orleans, I had a hankering for the gumbo at Stanley’s at Jackson Square. Because of its central location in the heart of the city’s most touristy spot, not to mention its crazy good gumbo, there is almost always a long line to get in, sometimes with waits up to an hour.
But with the Nowait app, I simply logged on, found the wait time, and clicked the restaurant to automatically place myself in line for a party of two. Even though I was across the French Quarter, I was able to put my name down without trekking over. And I was able to stroll the shops on Royal Street rather than standing around within shouting distance of the cafe’s host stand. I was also able to keep track of my place in line. Very convenient. If there isn't a line, the app will tell you the coast is clear and to come on in.
(Stanley's, by the way, requires users of the app to be within 2 miles of the restaurant, so you can't click it to get in line just before you board your flight in Orlando, though on Sunday mornings the timing might be about right.)