It sounds simple, but sometimes we forget to do it:
Ever wanted to know what your customers think is missing from a service point in your library? There’s an easy way to find out … just ask! Post something that asks “what’s missing?” and start gathering answers.
See David Lee King’s post What’s Missing for some ideas and examples on how to ask your customers for advice. It doesn’t have to be a formal survey, and you don’t have to jump into making changes based on their comments. But it is an important way to find out what your users think. And why not? Aren’t they the reason we’re here?