Four years back, two of my cousins and I visited Tokyo. We stayed there for 9 days in an apartment hotel during the Summer. There was a washer and dryer but we couldn't figure out how to use the dryer since it seemed to just steam our clothes. I was fine but my cousins were sharing clothes. One would wear a shirt and the other would wear it a couple of days later.

After, one cousin and I went on to Seoul. We were on different flights but I heard a funny story once we arrived. He said he was seated in the exit row and the lady next to him commented about the smell. He said it must be the toilets. She replied she didn't think so. When the flight attendant came to ask if they would accept the responsibility that comes with sitting in an exit row, the lady said she wouldn't.

Luckily, we had relatives in Seoul and got all of our clothes cleaned when we arrived.