There is so much to learn when you think you know it all... isn't there!!
I didn't do SEO for my blog because it was written on Blogspot and all the fancy stuff was prepared for the Wordpress platform. But it seems that more than 1 million users on blogger have made SEO techniques attractive to users.
So the first three things are:
1. Blog description
2. Robot .txt
3. Site Map
Neeed help?? What this You Tube: https://www.youtube.com/watch?v=wrmEee7uz5E