My current Blue Heeler (Australian Cattle Dog) is ?14. He is almost totally deaf, so we're really glad we taught him hand signals. If you go to an obedience class, they show you hand signals for stay, down, sit, etc. We raise our arm straight UP for Down. He can see that no matter where he's running cattle. As said, we use a large circular motion ending with a point with our right arm for right, and left arm pointing left for left.
I ALWAYS give our pup a body soiled t-shirt to sleep with. Mine if it's going to be MY dog, hubby's if his.
Also, I highly recommend crate training your pup. Meaning - get a crate & lock pup in it for the night or at any time you can't be watching him. Just be sure to be available to let them out often to go potty. Dogs LOVE their crate - it's their security blanket - their "safe place".