We have a tag, client-relations1, that's for questions about developer-client interactions: how to manage expectations, provide client services, and other such things.
We also have a tag, customer-relations, that's for questions about developer-customer interactions.
Technically, clients and customers are two separate things (clients being people who hire someone to perform a service, and customers being people that products are sold to). But do we need to make this distinction on this site? If not, is customer-relations a "good enough" catch-all tag for these types of questions, or is there a better one?
Note 1: Previously, this was dealing-with-clients, but I renamed it in the interests of dealing with one issue at a time. Since people want to discuss merging it with customer-relations, this question is now about that merge instead of getting rid of a crappy tag name.