If you do any sort of creative digital work, screenshots and screen recordings are a great way to remember it.
That was part of the reason why I started writing archive pages for my projects a while back. I used to have screengrabs of my old Mac and Linux desktops floating about somewhere, too, for that extra nostalgia hit. They seem to have disappeared in the sands of time, however. Mostly Digital Blasphemy backgrounds with similar color themed xmms and friends running.