Microsoft Word may be a relatively safe and familiar tool for you, but it is not very friendly when it comes to creating content for the web.  If you are editing or adding content to your site in Wordpress, Drupal, Joomla, or any other web-based wysiwyg editor:

Don't copy and paste from Microsoft Word!

Word creates a lot of ugly code that gets copied and pasted into these editors.  The results can be disastrous.
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