Here is a great cheat sheet from SEOmoz.org which provides all the tips and tricks you could ever need to get your blog or website in tiptop Google shape.
"When I first started at SEOmoz about 9 months ago, I was the web development intern....Since then, I have spent literally hundreds of hours expanding my knowledge into different areas. Specifically, I have focused on accepted SEO techniques and small business practices. My beginner SEO checklists of the last few weeks have been the tangible result of my newly acquired knowledge. In an effort to return to my roots, I spent the majority of the day compiling what I believe to be the mother of all technical SEO cheat sheets. The recommended viewing format of this cheat sheet is as a PDF rather than the traditional blog post (I found the blog posts inconvenient to print). Let me know if this new format works better for all of you."
To see more, check it out at http://www.seomoz.org/blog/the-web-developers-seo-cheat-sheet .