Everything on a mac is configurable, remember this and you change almost anything about it that bugs you. One thing that bugs me is the clutter of icons that start to accumulate on the desktop. To turn them off so that they still go to the "Desktop" folder you see in finder but do not show up on that beautiful picture of a galaxy, use this command:
The "killall Finder" just restarts Finder so it takes effect immediately.
to get them back: