You have a small desktop publishing firm. Unfortunately, not all your clients pay promptly.

b. A $2,000 bill for creating a series of handouts for a veterinarian to distribute to clients is now 72 days overdue. This one is embarrassing: you lost track of the invoice, so you never followed up on the original (and only) bill.

How do you follow up with the customer and collect your money if you lost the only copy of the bill