If your Home Menu's looking a little cluttered these days, you might want to anticipate the new 3DS system update in a few days that adds folders to the mix.
You'll be able to create folders to hold as many as 60 tiles each, which should certainly de-clutter that menu. You can name your folders too, which should make finding those 3DS demos a lot easier.
It's part of the same update that will allow Mario Kart 7 to get a shortcut-fixing patch.
The update should land on 25th April.