Unless your modeling is quite unusual I would recommend creating some freebie content as you familiarize yourself with Poser and Poser content conventions. I have had unpleasant experiences with poorly "Poserized" props sold as Poser-ready. Poser-ready props should conform to Poser universe scaling, should have properly established points of origin, should have Poser conforming material UVs and grouping, should have correct poly shaping and orientation, should have mesh economy and should be not have vertice welding that renders poorly in Poser. Freebies are a good way to test your Poser content mesh, texture and file organization complience and establish the quality of your work for consumers.

Poser File Organizer by Dimension3D is excellent for packaging content and it also can externalize prop mesh data, and convert material room .mt5 files into pose room .pz2 pose files. It is excellent for checking file references are good and switching between absolute and relative paths.