One of the sometimes uncomfortable parts of running a small business is asking to be paid. You provide the service. You send the invoice. The due date comes and goes, and then you start wondering: Should I follow up now? Should I wait a few more days? Am I being too pushy? I've asked myself those questions more than once. When you have good relationships with your customers, it can be tempting to assume the payment is coming and wait. And sometimes it is. An invoice may simpl