Ever come back from a holiday and got a phone bill that was even bigger than your vacation budget? If not, consider yourself lucky! However, there are numerous instances of unwary travelers coming back to see roaming charges in the range of thousands of dollars despite barely even using their phones during their time abroad. The specter of huge roaming charges is always an existential threat to the wallet of the modern traveler. While relaxing on the beaches of Bali or chilling out in the small towns of Mexico, wondering about whether you’re incurring roaming charges is probably