Bought an automatic door opener (the type for handicapped people in wheelchairs) so the dogs can come and go as they please to/from the back yard. I setup infrared sensors inside and outside near the dogs level (off to the side outside) and they quickly figured out how to open the door on their own.
Was like $600 but man was it worth it! Never have to worry about them being locked in or pestering me to go out. My big dog also gets a huge kick out of sneaking up on the pool guy and barking at him (just once!) when he’s not looking 🤣