There are some days when I run my dishwasher two or three times. It's such a time saver. I don't rinse. I plop the dishes right in the dishwasher, run the rinse cycle, and go do something else. It actually saves on water. Then I run a regular cycle with soap either when it's full, or at a minimum every night if it's not. Since there are other people who live in this house and use the dishes, they share the chores of unloading it. I'd MUCH rather be quilting, reading a book, watching movies or football with my husband than washing dishes.
I'm gonna have to check out that Narwal thing, that might be handy!