If you’re running a small business today and aren’t thinking about how to tighten your belt, you are surely in rarefied company. But if you’re like the rest of us, you’re scrambling to cover expenses, pay bills and make payroll. We asked Wharton lecturer and small business expert Robert Chalfin, about cost-saving strategies for small- to mid-size businesses. Chalfin is quick to point out that while there are no single solutions, there are numerous steps entrepreneurs can take to cut costs during the current recession.