As with your physical world, a regular digital declutter keeps everything in check and stops your computer and other devices getting clogged with "stuff".
Delete unwanted Internet Favourites; programs & apps you no longer use as well as shortcuts which may be cluttering your desktop.
Once you've deleted these items, empty your computers recycle bin or run a program such as CCleaner. Most operating systems also have a "defragging" or system maintenance function which helps to clear up left over file fragments and optimise your computers performance.
If all of this is a bit too technical - check in with your computer tech. person for their help.