Installing Alfresco to create workflows and manage your documents
Alfresco is a fun open source project that I've been playing around with lately. It's similar to EMC's Documentum, which if you've never played with allows you to create workflows for documents. It's billed as a "content management solution" but that term is very overloaded with all the web CMS systems out there. For those of you still confused, it allows you to manage all of your documents, such as MS Word files and such, and create workflows with them.
For example you could create a workflow that takes a new logo design, requires that a few people sign off on it, then the logo is converted into a PDF and e-mailed to a client. That kind of content management.