Use indented lists where appropriate for easy reading. Place redundant navigational buttons or links at the top and bottom of page for easy navigation. Place your name, address, phone number, fax number, and e-mail link on every page. Don't include your own picture regardless how pretty you feel you are. Minimize use of graphic files.
Colored tables are an excellent way to add color without graphic file overhead.
If it's not important, don't put it on your web page. Change page frequently. Don't use Entrance or Doorway pages to your web site. You have only one opportunity to get your viewers attention. With Entrance pages, you've wasted your first opportunity to get your message across.