So, I had an Idea that a lot of you probably won't agree with or like.
Common Room Floo?
With The passwords to the common rooms, what if they each had a fire place connected to the Floo Network.
The floo Keyword would be the same as the password.
--I know with Ravenclaw; the riddle is there. But
either way, I think it would be an interesting feature (Especially if you don't have a /sethome or /home bed there)
It's just something to think about. Kind of popped into my head when I was trying out random words in the Fireplaces.