Skype with Wifi
Credit: Jonathan Nackstrand / AFP / Getty Images

The most obvious way to make cheap international calls is to using the phone. Instead, set up a free Skype account, ask your friends, loved ones, or coworkers to do the same, and restrict your contact to those times when your phone is hooked up to a wifi connection. This is a best-case scenario, however, since free wifi hotspots at cafes, bookstores and other businesses aren't as common of a draw outside the U.S., and hotels can charge exorbitant rates for internet access.