Last November, I challenged myself to write a blog post a day. Now, to be fair to myself, I rarely used Twitter for the first year or so after joining in April 2008. It’s somewhat sad, I suppose, that my only effective mode of self-improvement is to set arbitrary goals. But it works. am happy to say I met my goal. Although I subsequently fell off the wagon in December (8 posts) and January (5 posts), it still feels like a significant achievement. This month, I’m setting my sights on Twitter.  visit to How Often Do You Tweet? tells me that I’m averaging 0.7 tweets a day.