House Elf question?

[Brent]

No: HPFGUIDX 131241

Who or what cleans the student clothing if the elves can't even touch 
it without being freed?  Hermione put elf hats and socks out and they 
would not even clean the common room anymore so I can't see them going 
to get them to be cleaned.  It is never mentioned that Harry or anyone 
else cleans them while at school that I remember.  Mrs. Weasley cleans 
them a couple times but not while at school.  They don't go home for 
months.  Unless they use spells to clean them.  But what about the 
younger students like the 1st years.  Unless that is a prefects job.