They should be able to accommodate both your wife and your son during her slot.

The ability to interview extra people during one time slot depends on the enrollment center, how busy they are and lastly, whether the Officers want to try and "squeeze" them in for you. It doesn't hurt to take your Son, Wife etc with you and ask if they can fit them in.

Another vote for filling out the blue card for GE
 

Monday morning I went up to the GE machines at YVR and started the process. Got past the questions and the fingerprints and then the machine timed out trying to retrieve my itinerary - Others were having the same problem. So now I had to use a Nexus machine instead, but I didn't have a blue card and I had to backtrack to find one and then fill it out against a wall... The my lesson is always fill out the blue card anyway.

or do like me and simply keep 4-5 of them in your carry-on luggage for these situations!

hear hear! This is always a good idea and can have a bunch of them pre-filled with the personal info and sign so you can fill the rest out in a sec. if need be!

The NEXUS Information Thread
 

I always carry both US and Canadian forms with me. I haven't used the US forms in a while, but often use the Canadian ones. It prevents you from needing to wait for them to hand them out, which sometimes doesn't happen till the end of flight, and I like to fill them in earlier. And, I suspect less of a problem on AC, but I normally fly UA, and have had occasional flights where they are low on forms or don't have them.

I'm so confused.

My passport expired a couple of years ago, so after renewing it I built some time into an itinerary and popped by the enrollment center at YVR to update the documents. No problem. My wife's passport is now expiring, and it's actually in renewal now. We've got some flights coming up next month, and to build the time in at YVR to visit the pass office is either going to produce a 4+ hour layover, or cost a couple hundred bucks more (stupid AC).

Then I remembered reading that passport information could be updated online using GOES. So I log in, and behold, you can in fact update all that information. But I'm not wholly sold on this, so I call the 1-866 number, push the button for the "document update" option, and the robot tells me that I should use GOES to update that information. Which pleases me! Because now I can use cheap flights and not have to spend hours at the airport.

Then -- for reasons I don't fully understand -- I call back and talk to a human, who tells me that all the information on-line and from the robot is wrong, and that the document needs to be presented to the pass office. So now we're back to long layovers or big bucks.

What's the right answer here? What have folks who've gone through this recently done? (I strongly suspect we're going to take the long layover because it's not worth it otherwise, but I'm curious anyway...)

In my interview (Champlain) the CBP officer was clear that I should not trust the GOES system to update my passport, but that I should fax them a copy of the new document and they would make sure that it is up to date in the system. Alternatively, one should stop at any enrollment centre at an airport. I recommend calling the centre where you interviewed after you send a fax to make sure that it was actually updated.

That's what mine said, except that he didn't even indicate that passport details could be updated in GOES: he specifically said that everything except passport details could be updated there but that I'd need to visit an enrollment center to update the passport (which I'll need to do in a couple of years). I asked if I had to specifically go to a NEXUS enrollment center or if I could use any U.S. Global Entry center, and neither he nor his less-than-friendly USCBP counterpart knew; they did say that the computer systems are all tied together, so I should be able to go anywhere but couldn't confirm for sure.

They did mention the ability to call their direct office for assistance and fax things in, but I don't recall if he said I could fax something as sensitive/important as a passport.

I guess that different officers in different centres have different opinions, which is not brilliant for us. My interviewing officer definitely mentioned faxing the new passport, while acknowledging that in principle GOES lets you update the details. He did not seem to have confidence that it was enough to update the information through your profile.

Where do you get extra Canadian ones?
US ones are easy since there are stuck right in the YYZ entrance.

Customs Hall when entering Canada

This. When I'm getting low, grab them from the customs hall.

This is covered about every few pages in this thread. As I've posted many times, I live in the US. When I renew my passport, I update GOES right away, then use NEXUS when coming into Canada, then bring it into an office. The reason for this is because the office takes a copy to keep on file. For what its worth, I do believe that if you have GE only, updating GOES is sufficient, but it is a US system.

Nexus Card accepted for check-in and boarding
 

http://www.aircanada.com/en/news/121022.html

If you’re a Nexus Card holder, you’ll be happy to know that your Nexus Card is now recognized as a valid travel document when you check in online or at one of our airport self-service kiosks for a flight between Canada and the United States.

Your Nexus Card is now also accepted when you provide your Advance Passenger Information (API) online before your flight.

We invite you to learn more about Nexus, and to take a few minutes to review document requirements for travel to all destinations.