Peppers of Key West, Key West

If you see smoke rising from someone's ears at Peppers of Key West, don't reach for the fire extinguisher: they've just discovered their limit at the store's free hot sauce-tasting bar. Though not all of the shop's offerings are that hot, many of them are—in fact, some bottles in the collector's vault require you to sign a waiver before purchasing.

That blistering collection is a testament to how serious the proprietors of Peppers of Key West take their hot sauce. The Florida-based company makes and bottles all of its original sauces, dips, and marinades, and ships them to online shoppers around the globe. But fans looking to infuse a little extra heat into their lives don't have to rely solely on sauces or focusing an enormous magnifying glass on their house. They can also raid the Peppers of Key West snack cupboard, which contains everything from spicy beef jerky to habanero popcorn and jelly beans.