TravelPass from Verizon

You learn something new every day.

For $2 a day per device in Canada and Mexico, and $10 per day per device for more than 100 other countries, your wireless Verizon plan can travel with you.

While this will not work for me for an upcoming trip to Cuba, I am considering it for a couple other trips to Europe (though $10 is a bit steep, the convenience may make it worth it).

You can see the list of countries offering this here: https://www.verizonwireless.com/plans/travelpass-countries/