I use the small Global Priority mail envelope and it takes five days from Florida to Madrid. It costs me $5.00, but I am assured that my friends in Madrid get the mail swiftly. I used the regular air mail in early December to send cards to two friends in Asturias and Madrid and my friend in Asturias got his letter 2 weeks later, I have not heard if my Madrid friend got his yet.
I like Global because its sure and fast!
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The world is a book, and those who do not travel read only a page.
--St. Augustine (354-430)