Returning Clients and Customers

It's always good to find that one's work is recalled with fondness by past clients and customers. I've had enquiries from a past client recently and am hoping (NDAs permitting) to be able to show what I've been doing for them over the coming months.
I take their reappearance as encouraging signs for the future of not only Creatorii, but of the economy in general.

You disagree?... Bite me!

Incidentally, I found a good definition for the difference between a customer and a client:

A client looks for advice and professional knowledge, while a customer might only purchase goods and services.