That is very interesting! I am stoked, I pay 24 in barrio norte! It started last year with 15. I asked in somer other laundrys in my barrio, but they are all about the same. For 24 it is a bigger bag than from supermarkets, I would say almost 2 bags. But it is the smalest size they offer. The laundry is called "laverap"!
So please let me know where you go to, post me some names of cheaper laundrys in recoleta or barrio norte, if you know!
I must say that the price is not the only problem. I wonder how they clean, I know that they do it with only cold water. So they must use heavy chemicals. All my clothes suffer a lot from that:-(
Thanks a lot!