What do you do about cellular service? On our first trip I made the mistake of not turning off cellular data and received a number of texts when our plane landed. I turned if off for the rest of our trip but upon getting my bill I learned those texts cost me big bucks in roaming charges.

We have since learned to turn it off and use only Wi-Fi at our resort. However, we have often wished we could use the GPS function of our iPhone but we dared not turn on cellular to do so.

Any advice?