I know I've mentioned before that my library has a strong "Get To Yes" policy for customer service - we want to do whatever we can to meet the patrons' needs.
To identify areas where we're coming up short, occasionally in the past we've kept "No Logs" at the service desks - log sheets for staff to track patron questions where we had no alternative but to answer "no." For this fiscal year, we're really trying to improve customer service even more, so we've made the Reference Desk's "No Log" a permanent thing.
Below is a snapshot of our "No" questions from July 1st until now - mostly museum passes this library doesn't offer, extended study room use, or printer/copier questions. But there's other good stuff in there that I think we can improve on, and that's what this is all about:
Nothing earth-shattering - which is good, really - but small steps are sometimes the best approach for improvements. I'm really curious to see how these things trend over time, too.
Also, slightly related to this is OCLC's Top reasons for no - the reason libraries report for interlibrary loan requests being denied. I can't remember where I saw this link posted, but I like this sort of thing.