A shower curtain with built-in gloves - so you can bathe your dog without getting wet every time she shakes! THIS IS LIFE CHANGING. If you can't teach your dog when to shake and when not to, then your dog has YOU trained.
Doggie shower in garage. Love this idea. Also seen it done like a mud room with a door to the exterior so the dogs can go in and out but can be closed off from the rest of the house (like a giant dog house with all the amenities attached to your house!