The standards:

• sit /sit-stay
• down / down-stay
• stand / stand-stay  -  If you haven't taught your dog stand and stand-stay, you should. Very useful at the vets and during baths or grooming.
• ok   - the all purpose release and permission word. Releases the dog from any of the extended commands, like stay, wait, or heel. Grants permission if they are thinking about doing something, but haven't quite decided whether they will get in trouble or not. Trainers will tell you this isn't a good release word because the dogs will pick it up out of conversation. Yes, they do, but I don't have a problem with that.
• wait  -  We use wait to prevent the dog from doing what ever it is that she is about to do which we do not want her to do just yet. For instance, Nikki loves to get into the truck, even if the tailgate is not all the way down yet. It's not a lot of fun to be lowering the tailgate when 50 pounds (23 kg) of dog lands on it. So before lowering the gate we tell her to wait.
• come   -  For our purpose if they're within arm's reach and sitting, it was a good come.
• heel  -  I don't insist that the dog be right at my hand. If they're a little ahead it's ok as long as the lead is slack.
• off  -  The all purpose "what every you're touching, stop it" command. Off the couch. Off the biscuit that dropped on the floor. Don't jump up. Dogs seem to learn this one quickly if you pronounce it like a bark. Practice saying it somewhere away from the dog.
• no  -  We try to reserve "no" for more important corrections, especially when a command has just been ignored. First try: "Nikki down." Second try: "Nikki." Third try: "No, down." Fourth try is a physical correction.

Out and About:

• easy  - Don't pull on the leash. This is for walking on lead but not during a "heel".
• pull  -   We worked with a trainer who thought that for anything the dog was reluctant to learn, you should teach them a command for when it's ok to do the opposite. She taught "speak" and "quiet" at the same time. Tsuki loved to pull on lead, so when we went hiking in the hills, "pull" gave us 4-paw drive assist.
• let's go  -  You're done sniffing that, let's go.
• hup  -  Mostly we use this to get the dogs into the truck. We also use "hup" to allow jumping up and putting the front paws on an offered arm.
• back - Back up, at least one step.

Around the house:

• upstairs / downstairs  -  Go up or down the stairs. This is especially handy by one of our gates. I can send the dogs upstairs, and then they are no longer near the gate.
• inside / outside  -  Sometimes we use this as a command, "go outside". Sometimes we use it as a question.
• go to bed  / bedtime - We're all going to sleep now.
• move  -   It's a dog's job to be in the way, and you're doing it well right now.
• kitchen  -  We don't use this one ourselves. Friends of ours who had a very small kitchen used it to exclude the dogs from the kitchen area. Handy when camping, since the dogs quickly learned that any area that was "kitchen" was off limits.
• get a toy / where's your toy  -  We used this one a lot when teaching Tsuki, the akita, to have a soft mouth. If we felt any teeth at all, we'd yelp loudly, sit quietly for 10 or 15 seconds, then tell her to "get a toy". As a result she would hardly play with people without a toy.
• drop - put the thing down. We used this a lot with Tsuki, since she almost always had a toy in her mouth, but toys were segregated into indoor and outdoor toys.
• play's over  -  We learned this one from puppy classes and it's very valuable when you have multiple dogs playing with eachother.  When the rough housing gets too much, use "off" and "play's over" to stop the ruckus.
• quiet / that's enough  -  Stop barking. We find that the "quiet" command isn't that effective, because it's hard to sound like you really mean it. You can growl at bit when you say "enough".
• not for you  -  Stop begging. Also used to scold doggies who pick the wrong thing to chew on. Gloves are not for you.

Taking care of business:

• go to the pen  -  The pen is the dog's toilet area. To help avoid being awakened in the middle of the night (or worse, not being awakened in the middle of the night), we make the dogs "go to the pen" just before bed.
• find a spot  -  Sometimes "go to the pen" isn't enough and they need to be a little more task oriented. Stop barking at the deer and find a spot.
• leave a message  -  For use on walks when the dog finds a well marked area. Yeah, I know you want to read them all, but just leave a message and let's go.