After many breakouts and break-ins, we decided to let the puppies have their way and combined them. Although they are about a week apart, they are the same size and love playing together. The Goldens taught the Goldendoodles where the potty area was, and they immediately started using it! We have never had a litter train so quickly.
Another change is, we bring both litters outside to eat and for recess. They love it. They run in every direction exploring and using up lots of energy; back in the house, they nap. We do this three times a day for 45 minutes to an hour.
They are so much like little kids, food all over their faces.