We also thought about washing clothes in the sink here, but we decided to drop off our clothes at a place that had washing machines and had them wash our clothes for us. It's a bit different than in the U.S.--they didn't seem to have a lot of self-service options. It was nice to have clean clothes! The laundry soap they used had a distinctive, pleasant smell that I associated with my time in Argentina. The sheets and towels at the hostel and apartment had the same smell.