On my honeymoon, we went for a complete tour of Europe and my mom's biggest worry was how would i stay connected to them. My husband was worried that with multiple sim cards it would become to costly! A friend told us about the Prepaid global sim card by Matrix and we decided to go for it. I must say that was the best discovery we had! It was a single card which could be used in multiple places plus since it was pre-paid we could decide the amount, Along with that it had free incoming calls so my mom was able to relax back home while we enjoyed Europe :)