The single biggest reason for a cluttered computer is unorganized files. Create categorized folders in a logical order to place start menu items, browser bookmarks, downloaded items and other files.
There is no hard and fast rule regarding the categorization of folders. As a general guideline, categorize start menu folders into games, Internet, multimedia, office and utilities; categorize bookmarks into articles, blogs, entertainment (subdivided into games, comedy, and others), forums, news, shopping, tools and videos; and categorize file folders into documents, software, songs and videos. Create subfolders under each category depending on the content. Name the folders to reflect the programs, websites and files stored under it.