I'm sure there's going to be a lot more ideas here, but two things that give you a really quick and long term hit: <h1> and <title> tags on each page. Make sure those two are meaningful, ie. if your blog is about entrepreneurship put the word in the first h1 and title tag of each page. Obviously, the more generic the word, the harder it becomes.
It seems to work wonders.
I write good content on my blog, and wait for other people to notice it and link to it.
so personal seo is an interest of mine, and something i've succeeded at.
before you can answer, what are you trying to be known for, and where are you publishing currently.