Suppose you have to go to a friend's house for a week or two, and he lives on the other side of the same state, so at best the selection there is the same as in your town, but the prices might not be as good. You've got a pretty nice selection of whiskey at home, but you can't take it all with you. What do you take?

Bonus: suppose your friend lives near Detroit, and you have a passport, so a trip to the duty-free shop might happen. Is there anything worthwhile there? (Not just posted on a list on the interwebnets, but actually on the shelves.)