Here's an easy one: put these ingredients in a water bottle if you forgot your shaker:
1 Pack Shakeology
1 packet Starbucks Via Instant Coffee
Altoids to Taste. Probably Peppermint will work best.
Water to taste and as cold as you can find.
Shake and let sit, repeat until Altoids dissolve.
I did this and it's pretty good. You get bored on a long flight. :)
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