Because soy sauce is fermented, its chemical composition allows it to withstand warmer temps without spoiling, which is why those little Chinese takeout packets do just fine in your office desk drawer.
Pickles are another preserved item, so they're cool with being stored at either fridge or room temperature (hence that requisite giant vat of pickles on top of every deli counter).
Butter (in some circumstances)
Keeping butter cooped up in the fridge limits spreadability, so many folks opt to shelf the soft, salty stuff. Stored at room temperature, though, butter only lasts for about a week before slipping into the spoilage zone, so proceed with caution if you buy in bulk.