Found out about Turo the last couple of weeks. I think of it as an airbnb for cars. Got what I think was a pretty good deal on a rental today in the Seatac area. Was able to walk about 1/2 mile to pick up a one day rental for under $100 all in. Something to consider checking out. If I had checked it out earlier, I might have used it in Hawaii. Certainly cheaper than taking a guided tour or renting from the traditional rental companies.