going to Bahamas in a few weeks and want to know the best way to save money on data and calls? in the past with Android i would get the International package and Verizon would pro rate it and it was like $5-6 a day. plus $3.99 per minute for calls. With iPhone i am going to use Skype to text and call which is like .03 cents a minute. and use the wifi in the hotel. how do i turn off all data on this phone so i make sure i dont get any data charges while i am there? also, is this the best way and cheapest way to use this phone internationally?