Actually I find doing laundry on vacation not that bad,just put it in sit by the pool and then throw it in the dryer. It saves me from packing to heavy and also I don't go home with a suitcase full of dirty clothes! I do pack a couple od ziplocs with laundry soap and a few dryer sheets which also helps the suitcase smell good. I just think that buying the soap is usually to expensive and also alot of times it seems those machines are broken. But almost all hotels these days have laundry facilities.