I always carried them out in my arms. Dh always took all the stuff we'd accumulated during our stay out to the car first and then came back up and we walked out together. My hospital always took a 'leaving photo' of you too. On your last day just before you go they take a pic of you and bubs and then put them up on their notice board in the nursery. You can see all the other families too. It's a nice touch I think. Walking out that door with your new babe in your arms just makes it so *real* it's hard to describe. With our first bub though walking felt like I had *****les in my knickers from the stitches LOL so I wasn't walking real fast.