On page optimization - (Checklist for Doing SEO Part Two)

This article is the continue part two of Checklist for Doing SEO
Make use of online traffic analysis tool.
Sign up the webmaster tools like Google Analytics, Google Webmaster Tools, and Live Search Webmaster Center. These tools will give you sufficient information about your site which could help you to do a good SEO job. Let Google Analytics gather some traffic data as a bench mark before you start your SEO work. Don't forget about history. It can point out the right direction to you.
Evaluate the visual design of your client's site.
If the site is too scary for people to browse, do SEO for it will become a waste of time. A good designer will bring you into the door of success.
Check compatibility of site between different browsers and operating systems.
Visit your client's site using different web browser. The most popular browsers are as follow: Internet Explorer (IE) version 6.0, IE 7.0, Mozilla Firefox, Safari and the Google Chrome. And the operating system that a visitor may use is normally either Windows or Macintosh. Although Linux become more popular than before, there's still few people use it.
Add a robots.txt in your domain root folder.
It allows you to specify exactly which pages search engines can crawl and it makes search engines easier to index your site because they always download the file before navigating through pages of your site. Having a robots.txt makes your website search engine friendly because it's like saying hello to those crawlers.
Have one copy of brief introduction of website in hand.
This is for the link building directory submissions.
Analyze the HTML code and optimize all of the SEO related Meta tags.
The following Meta tags are very important:

1. Title tags
2. Meta keywords tags
3. Meta description tags
4. H1 tags

Optimize URL architecture.
Link your pages with each other is very important. Don't leave any single page hanging alone.
Optimize your images
On relevant images include keywords in alt tags in their file names.
Navigation analysis
Add navigation links at the bottom of every page if your main navigation links are in flash or none-friendly JavaScript navigation menu. This will help the spiders crawl from one page to another and complete the indexing of the whole site more fluently.