[h3]Let them eat cake! (In an inclusive, non-French Revolutionary kind of way, of course)[/h3]
HOW? Make it a tradition for store employees to bake their own signature cakes (black forest, carrot, 100 percent vegan, whatever) and then bring them in whenever something good happens, like a store meeting, when it rains, when you hit a sales target.
WHY? Because everyone likes cake. And, when you have a terrific staff it's a great way to celebrate just being a team.