Name variable (user name) should be always present when automatic node adding by node_save in Drupal. If this parameter is absent and adding goes by the role of superuser (uid=1) variable uid is ignored and changed to 0

1. At the very beginning of work don’t forget about original prefix for tables in DB.
2. Check all site pages in IE 7
3. Make sure, that admin with limited rights is developed for client, ant that this admin has enough rights for content editing.

1. Cross browser testing
Site should work fine in IE6-8, FF3+, Opera9+, Safari4+, Chrome4+
2. Always define background colour for body even if it’s white.
3. If you use css hacks comment them, or better use css_browser_selector.js. Remember about layout designers, that will work with this layout afterwards.

.someclass     {
      opacity: 0.3;
      filter: alpha(opacity=30); /* for IE */
}