Craving to write..!!

I am in a writing mood today... that is though I have no flow of words or thoughts, I just want to write.. type something in to my blog...So I sat down in front of my laptop and opened the easiest site to write in to.. twitter.. I thought to myself "ok few tweets into it and your urge will be off"... but no ! it is not so... I still feel the urge to continue... I was wondering what I should I write about? Should I write about people? subject? controversies? philosophy? climate/weather? then realised am not good at any of these... so why not write about some thing i know best or atleast know the most about .. MYSELF!! :)