You are right, four dogs is a lot. Right now my DIL is staying and her two whippets are staying with us and my daughter is over for the day with her lab. When they leave, perhaps four won't seem like so many!
How is it with two doodles....???? well, our household has changed drastically since the addition of the little one. Maggie (the big one) was always so laid back inside, outside she'd run all over the place, but back inside just curl up and sleep. Luna is still so new to our house that we still remember the peace and quiet of just Maggie. Now its filled with puppy yaps and two galloping doodles running amok with squeaky toys in the mouths...and the occasional hiss of our poor cat. Is it bad that work is more relaxing than home...haha. Just joking. In all honesty, it's great having two. Luna is so different from Maggie. Yes, she's 100 times more energetic, but she's also far more cuddly than Maggie was as a pup. I can't wait until Luna's personality really starts emerging. It will be very interesting to see what kind of adult pup she turns into. They are both such wonderful dogs already. By the way, Murphy is adorable...and Huge. They are indeed happy dogs aren't they?