10
Dec
I bet that you have many icons on your desktop. I do and I’m sure that the majority of users will have many icons on their desktop as well. It is convenient to have them there to be able to quickstart the programs right from the desktop. Some icons might be there because you forgot to disable the option to remove the icon on the desktop while installing the program.
12
Feb
I found an interesting section at interfacelift.com which lets you icon packages for windows and macintosh. You find more than 90 pages each with 10 icon packages for macintosh and 24 pages with 10 icon packages each for microsoft windows. Downloads are free of course and icons look great. The site opens a popup with advertisment as well, if that annoys you use a popup blocker.