Thanks for the above two suggestions. Good idea.

Normally I'm perfectly fine with a SIM exchange, but more often than not, I need a SIM to call back to the US...not to communicate w/ locals. This is getting hard to find, for me at least. I.E., at Vodafone in Sicily, I simply couldn't find a SIM to call the US. Stuck w/ an Italian SIM for 9 days.