Great for travel
Doing laundry by hand when traveling can allow you to travel light.  One big problem is carrying laundry soap.  Liquids and powers are messy and inconvenient as bot can spill into your luggage.  We were on a 30-day excursion with 6 days as the longest stay in any one location.  Getting our laundry done was one of our daily chores.  These little sheets of detergent was just right for the hotel sink.  Bigger loads in the bath tub means a few more sheets.  One little pack lasted the entire trip.
Rating: 5 stars