When people think about improving workplace culture, they often imagine big changes — new policies, performance systems, or expensive team-building retreats. But sometimes, the biggest transformation comes from something as small as a candy dish  on a desk. Years ago, an old colleague of mine used to keep a bowl of candy in his office. It was simple, inexpensive, and yet it changed everything. People would stop by for a quick treat, but they’d end up staying to chat — about