One of my favourite must have tools. I've used it in many non-for-profit orgs as an alternative to disconnected and messy spreadsheets. I've seen it used in Film Festivals, Vounteer Rostering and Event Planning. It can also be an awesome Intranet alternative.
Cloud Based; Easily customisable without code; Apps for iPhone, Android, iPad; FileMaker Alternative; Free for Non-For-Profit
No Printing Templates; Filters can be limited depending on the fields.