went to university and use the course-specific knowledge learned as part of the courses there on a frequent basis (e.g. physics, mathematics. etc.)
went to university and use the general knowledge learned through doing coursework there on a frequent basis (e.g. logical thinking, ability to write coherently, etc.)
went to university and use the knowledge/abilities learned on my own time there on a frequent basis (e.g. stuff learned from clubs/societies or hobbies)
I went to university and find the personal growth I went through to be useful at work on a frequent basis (e.g.better able to deal with people and complex situations)
got something else useful out of university which I will explain in the comments.
didn't get anything useful from my university experience.
didn't go to university (and not about to start)
am still at university (or am planning to start)