We know you’re short on time, so we’ll be brief.As a jewelry retailer, you’re juggling customers, ­employees, a business, and even—could it be true?—your family and personal life. If only there were a few more hours in the day. That’s not going to happen, so your only ­alternative is to better manage the hours you do have in order to increase your productivity, profits, and personal time. Here are some time management tips from ­successful business owners and experts in the field. Breaking a large project into small tasks can give you a sense of accomplishment, says Michael Levin, associate professor of marketing at Otterbein University in Westerville, Ohio. He also suggests crossing off finished tasks and leaving them on your list for a day or two “so you can see your successes.”Wixon Jewelers’ Hope WixonAt Wixon Jewelers in Minneapolis, co-owner Hope Wixon maintain