What is a case study? Yes, it's a write-up of a successful project – but it's also much more than that.
I bang on to my clients that, in order to improve their marketing communications, they need to see through their customers' eyes and talk their customers' language. Well, who better to help you achieve this than… an actual customer!
Your immediate thought possibly isn't your best thought. Why? If you choose to focus on a job which has gone swimmingly then you're missing a trick.