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I came across this interesting offer on Amazon for an 8 drink Sample Box. It costs $9.99 and will ship using Amazon Prime. This is also an offer ONLY for Amazon Prime members.
Here is where the deal gets interesting. They will basically give you your money back as a $9.99 Credit to go towards your next beverage purchase for any beverages sold and shipped by Amazon. So, in the end, you will probably end up with double the amount of drinks for the same price.