Planning to blog but not blogging to plan

As this is a new blog I sat down in the week and drew up a plan. In the plan it said things like. Choose a direction to go in (technology, photography, etc). Write x number of articles a week. Make certain changes changes to the blog to make it more user friendly.

I sat down on the train and started to draft a blog entry and this isn't it. What I have already learned in my short blogging time is that things change. What I started to write then I don't want to publish now. You see I'm a technology person, a logical person, everything needs a plan. Not necessarily a project plan or an implementation plan but at least know your next steps. Right or wrong? Well I think both actually.