Get offa my tag cloud

I've just added my tag cloud to the blog via Del.icio.us and I'm afraid it looks rather messy. Other people's tag clouds look much cooler. I don't really understand why some of the tags have even appeared in my cloud and it all goes to show that I need to spend more time learning the finer points of tagging. I've got hundreds of bookmarks but have not actively tagged very many of them so I suppose they generate some kind of default tags instead. It's a simple matter of the more effort you put in the better the result and Web 2.0 is no exception to this rule.