You already know to budget for tips when you travel. But you should also know who to tip when you travel.
It's a no-brainer to tip the maid—at least a couple bucks a day.
But don't forget to leave a tip if you’re staying at a bed and breakfast, or even a rental property. Those places have to get cleaned too.
Did you get any recommendations or reservations from the hotel concierge? You should reward those tips with a small tip.
Plus, with so many airport pickups and ride-share services being booked online or through apps, a lot of people forget to bring cash to tip their drivers.
That free courtesy shuttle? It's always nice to give the driver a buck or two, especially if he helped you with your luggage.
Remember, while tipping is commonplace in the U.S. the rules change when you go abroad. Look for an app like GlobeTipping, which gives you suggestions in 200 countries.
Even Starbucks has an app that lets you tip baristas straight from your phone, so watch out for that technology in more establishments.