This is the presentation of the Infinite Filing Cabinet; an object<->relational layer of the Collaborative workflow product developed at AB Strakt. The presentation is based on a paper that was originally prepared for the ACCU Python UK 2003 conference. The paper can be downloaded from http://www.strakt.com/~jacob/ifc-accu.ps. It will later be available from the homepage of AB Strakt: http://www.strakt.com.