When I got MeatLoaf from the rescue centre {he's a Saint Bernard X Old English Mastiff}, he wasn't trained at all, except for 'sit'.
Because I had a young daughter at the time, I spent lots of money and time with a private large-breed dog trainer and heaps of personal one-on-one training time, to make it safe for them both.
MeatLoaf knows both verbal and non-verbal commands. Non-verbal being the same as his verbal commands, but in Auslan, which is the Australian version of sign language.
We have a few friends, as well as my step-brother, who are at various levels of being either deaf or mute, and this makes it easier for them to give him commands if I'm unavaliable.
Also, if I can't speak {like being restrained by an attacker} I can still command him using hand signals.
A few of the things I've personally taught him are:
When I go to the door to open it, he gets to my right in a way that allows him to see a hand-signal and to get through the doorway easily {like if I was being attacked}.
He won't eat anything thrown on the ground, or drink water from a stream or pond. I grew up in the bush, where dingo bait was poisoned meat left on the ground, and our dogs were taught only to eat things that they found in their personal bowls. If we go out walking in an off-leash area, I know he cannot be poisoned by eating or drinking bait.
He was worked with by my trainer and my daughter, so that he knows that she's an important member of the family, and she can give him commands too. This, of course, meant she'd constantly fire "sit,roll over, fetch, beg, drop it!" all at once, and he'd go crazy trying to do it all.

He is also a child safety officer. Well, not really, but that's what I call him! One step towards a road and he blocks the way with his body, same goes with the kitchen, pool and bathroom.
Difficult at first, when I tried to give her a bath and he'd constantly leap in front of us and block our way. Being too tall to step over, and too heavy to knee-nudge out the way.
He can fetch balls and frisbees, too.
So, what commands does your Paw know, and how did you teach them?
I'm looking for what ideas others have, and maybe some more things I can teach him.
By the way, is he too old to teach new commands to?