Hogwarts Laundry

[Penny Brooks]

No: HPFGUIDX 163476

After all these very serious discussions, I'm going to ask one that
could be deemed kind of dumb.  But, I've been thinking about it for 2
days now, and I'm stumped.

Who does the laundry at Hogwarts?

I've been rereading COS lately (for the 100th time), and it occurs to
me, when Dobby mentions that his masters (at that time) can't even pass
him a sock, for it would mean his freedom, that he can't pick up any
clothes.  I also thought about GOF, when Hermione's trying to knit all
those hats, and the elves refuse to pick them up, and, seriously, they
can't (and won't) pick up any pieces of clothes.  So, who does the
laundry?  We never hear that there are any other servants in Hogwarts
(I guess Filch could be one, but he's the only one apart from the
staff).  Or, is it a matter that they can do the laundry, if it's
clearly understood that it's not being given to them?

All the problems and issues going on in the world, and this is the
matter that I get obsessed with.  :)

Penny