Emails, billing, invoicing a client, adding customer logs, and code changes to add in a custom email address for a client. Pushed up new code files, sent follow-up emails, and back and forth with a client on their invoice.

As a side note, we have age verification as an ecommerce option. This is a global protection to keep underage customers out of the site. We already have two different levels, you have to say yes, I'm over x (some age value that is set by the company) and another that requires the birthday during checkout. The new request from a client was age verification on a per item basis. That's a lot deeper.