Good luck and take loads of pics - they grow FAST!
Enjoy your last decent sleep for a while - honestly. I didn't believe it either, but boy is it ever a huge learning curve!
Don't be surprised if the cat runs away - ours went missing for a day and when she returned, she looked as if to say, oh dear, they've still got that horrible stinky smelly puppy - I'll try and ignore it. And she still does! It will take a lot of time in our house to get the very superior cat to come down to the puppy level!
Enjoy. Enjoy. Enjoy. A month from now you'll have been through everything and feel almost an expert!