Jeff, this shop:
http://cheesehaven.com/
is not far from shack, maybe 10 minutes? They have a large selection of hot sauces, rubs, spices and other things. It is a very neat shop! We vacation down the road from it every fathers day and is a staple to every trip. They also have a very large selection of island wines from the area.
The website does not to this store justice at all!