allchokedup - not WFA
i washed 3 gis at once and now my washer wont spin. This is just a word of advice for you married guys. My wife has washed sheets,bed spreads,pillows,shoes and everything else you can imagine but my "dirty ass gis" broke it. I am certain i fried the clutch as i took it apart last night and looked at it.
she hates bjj and now i have to wash them at the laundary mat. life is good
Hahahah i'm sorry but that's pretty damn funny man :p 
vegard - the only reason you should be washing two or three gis at one time is because that's how many you wore during a single training session. otherwise, wash your gi immediately after training. there is a reason you have "dirty ass gis."
sure in a perfect world..i go to class wednesday at lunch. my sons will go wednesday night. that is 3 gis that are dirty and now that my wife goes sometimes it is possible to have 4 yes 4 dirty ass gis in one day. Especially on saturdays when we all go at the same time.
Someones gonna have to start no gi IMO..