I have an incentive to post more. From amazon:
Dear Publisher, We noticed your blog (listed below) has not updated for more than 30 days. Kindle customers expect to receive frequent updates for blogs and news feeds to which they subscribe. Because blogs should update at least once per month, we are cancelling blogs that have not updated in more than 30 days. Accordingly, if you do not publish new updates within 7 days, we will remove your publication from the Kindle Store.
Not that it matters that my blog won't be available to Kindle. I doubt anyone is subscribed to it. However, that reminder was enough to push me to start thinking about blogging more. I got a list of topics in my head on what to write about so it's not a lack of ideas that are hindering me, just a lack of time.