Bear in mind that you will have to re check luggage, and most likely* will not be allowed to do that until the following morning, so pick one bag for overnight and most importantly leave room for repacking you duty free liquids!
*Airline reps are often in the baggage area imeadiatley after immigration, are sometimes willing to help with rechecking, especially if you have an early morning flight, and are adept at looking pitiful
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It's rarely rocket science, it's usually just math: then again if you can't do the math.......