The idea is pretty much in the tin: Let us use our alternate characters on an account as Houseguests.
No dialogue (except maybe some generic voice sounds like laughter or grunting, per the voice type of the character) and wardrobe based on whatever Outfit is actively toggled. Obviously, an IF_Check could be added on_load for the home to see if the character is active, and selectively not spawn the houseguest if that's the active character you're currently playing. This would also be a great way to show a gallery of our characters if we wanted to.
Let's not make this the "more special collectibles limit" thread, please. I agree that we need it, but this is not what I'm posting about.
What do you think?