It’s the start of the busiest time of the year in the jewelry industry. And we know most retailers are busy fine-tuning the endless nuances of merchandising, marketing, and operations in preparation for December’s sales blitz. It’s easy, in all the hubbub, to lose sight of the valuable methods and motivators that elevate the retail experience—for ­customers, owners, and employees alike. Which is why we’ve asked a clutch of ­veteran retailers to offer up their best advice—and anecdotes!—on everything from no-fail ­promotions to nightmare sales scenarios. Here’s hoping their stories and tips will fire up your imagination this ­holiday season.Q. What is your single best money-saving business initiative?“Buying our building many years ago was a [huge] expense, but now it’s appreciated so much that we don’t have to pay rent because we own it. That was a long-term cos