These days it’s less frequent that you’ll need a GUID. But sometimes you do. I remembered a little utility called GUIDGEN.EXE would create one and place it on your clipboard. I didn’t have that installed, so on a whim I browsed to not expecting to find anything there (and giving me an idea for a site to create). Lo and behold, though, it’s an actual page that generates a GUID with a click of a button. Sweet!