Trying to ride in the car together.
Of course, that much fun in the tub meant we just traded the temper tantrums about coming inside for tears over having to get out of the tub. My kids are precious, but they don't handle transitions well at all (sorry kids, that's part of life).
Note - I don't think it's mentioned on the pintrest link, but this definitely left some color behind in our tub. Good thing was it made me finally get around to cleaning our tub during naptime (it's probably been a solid two months since I did that last). Bad thing was I didn't really want to clean the tub - I wanted to sit on the couch and eat junk food.