Why I like to organize is probably very similar to why women like to clean. (http://www.realsimple.com/home-organizing/cleaning/love-clean/calms-mind )
It makes me feel in control, it calms my mind, and it's a reflection of who I truly am. Plus it's always nice to start the year fresh, without the mess.
I understand that organizing isn't everyone's "thing", but it certainly is mine. Don't get me wrong, my house isn't perfectly neat all the time, and I do occasionally lose things. But that doesn't stop me from embracing the bliss of organizing small areas of my life.
And one more plug for Workflowy - absolutely the best organizing and list making app in the world.