After reading a post on weblogtoolscollection.com about checklists for Wordpress installs.

Note: This list shows some pointers for your Wordpress install, nothing else and, it is a subject to change.

Before installation:

• Change table prefix to differ from the default one for your Wordpress installation (wp-config.php file). To mitigate zero-day SQL Injection attacks.

After Installation:

• To your theme, functions.php file, add (for security reasons):

<?php remove_action ('wp_head', 'wp_generator'); ?>

• To your .htaccess file (Wordpress main directory) add (for security reasons):

Options All -Indexes

• Edit permalinks to:

%category%/%postname%/

• Delete Wordpress test data: post, comment, page, links.
• Rename default post and link category to one of your liking.
• Create another admin level user, then rename or delete default Wordpress user: admin (security reasons).
• Add a robots.txt file to your Wordpress root directory.
• Post management:
  • By default Wordpress saves every post revision. After a while that will take up much space and clog your database. It is possible to tell wordpress to turn of post revisions (wp-config.php):

define('WP_POST_REVISIONS', false);

But, there are times you need that functionality.  To get most out of both sides I use GD Press Tools. Not counting other functionality: It allows to delete old post revisions on demand.

• Then comes SEO for your blog:
  • Sitemaps: I use Google XML Sitemaps
  • SEO for each post:  I use All in One SEO Pack
  • Register your site at Google Webmaster Tools and work with them.