This is a great topic, I just stumbled across it today!
It hit me over the xmas period that I call myself a songwriter but in fact I hadn´t actually written anything in a couple of months. I have spent time trying to learn recording and production technics better and get to grips with improving some of the songs I had written in the past, but not actually written much to mention. I have done a couple of verses on different songs but then sort of petered out and left them.
So,I have given myself a mission to write something everyday, not necessarily a complete song but a couple of lines of lyrics at least. The idea is that from what I have read the first couple of dozen songs you write will be crap, so if you manage to write the crap out of you then everything you write from then on will be good!
Well thats the idea anyway, but life being what it is, I have not even been able to keep this up even after only a couple of days, far too many other things keep coming up that need to be dealt with and get in the way.
But this is something I really intend to try and do, write for writings sake, to try and better myself. If I want to consider myself a songwriter surely this is something that can only help.
Thats my thought on the matter anyway for whats its worth.