I might open up a thread in the trading board to sell any spare items I might get every so often, but that might be about it. I do have lots of time on my hands to possibly open up a shop, but I'm not too sure on how I will keep items stocked...
i'll definitely blog about my experiences and try to get all the new nook miles. but i don't even have the nintendo online membership (yet?) so a shop would be pretty much useless. let's see though