If you like to use MS Word to write stories and export them as webpages...well, don't. Word does a terrible job at it and produces bloated, often unreadable files that may or may not contain personal info about their author. If, however, you don't know much about HTML and can't afford a commercial product like Adobe Dreamweaver to create web pages, I reccomend this: http://textism.com/wordcleaner/
It's a web-based tool that cleans up MS Word-generated web pages. It will clean documents up to 20k in size (not very big) for free. If you don't mind shelling out 20 euro through pay pal, you can clean up to 75 docs a month of any size. For what it's worth, I know nothing about it's author other than the fact that he does good work. I do know it's a lot cheaper than Dreamweaver (which is currently retailing for > $1000) and quite easy to use. You upload a MS Word-generated file, it gives you back nice, clean HTML.