TASK DEFINITION: Given a travel related situation, and given a specific question about the situation, summarize the question into a title
PROBLEM: Background:

I was originally booked on WestJet from Boston to Glasgow through Halifax.  This week, they informed me the BOS -> YHZ flight is canceled, and are wanting to route me BOS -> YYZ -> YHZ -> GLA, doubling the length of the itinerary.

I've called WestJet and they say they can't come up with anything better, so I'm looking for other alternatives.  

One possibility is to book a flight on a separate airline from BOS -> YHZ, then take the original YHZ -> GLA flight (after telling WestJet that's what I'm doing, to avoid being seen as a no-show when I don't get on the plane in BOS; the agent I talked to said this would be possible).  

The concern is that I will be traveling with checked bags, and these would be two separate tickets, so I'm assuming I will need to clear customs in YHZ, collect my bags, and then re-check them and go through security again, and I don't know how long that will take.  Assuming nothing changes (and my faith in that is...tentative, at best), I will have 1 hour 50 minutes between the flights.

Questions:

Are my assumptions correct?  I will need to collect bags, clear customs, re-check the bags, clear security?
How long does that process normally take? The flight from Boston is a small plane, arriving at 9 PM on a Sunday.
How long might that process take in the worst case scenario? (I mean, I suppose the worst case is it takes days because something goes horribly wrong, so I guess I'm really looking for an idea of what's a reasonable upper limit...)
It might be possible to get NEXUS before the trip.  How much will that affect things?



SOLUTION: Customs for connections through Halifax with checked bags and separate tickets

PROBLEM: Wiki gives us the following explanation of the use of high beams in a car:


  Main-beam (also called high, driving, or full beam) headlamps provide an intense, centre-weighted distribution of light with no particular control of glare. Therefore, they are only suitable for use when alone on the road, as the glare they produce will dazzle other drivers.


But what if you drive at night on a fully separated highway, such as the Autobahn? Are you allowed to turn on the high beams? I assume the middle barrier will prevent other drivers from getting blinded, but perhaps it would also be annoying to the drivers in the front?


SOLUTION: Is it legal to turn high beams on when driving on a European highway with fully separated lanes?

PROBLEM: Arrival cards, Immigration cards, Custom declaration cards at airports often have a field that asks for home address/country of residence, etc...

What if a backpacker no longer maintains a residence and therefore has no home address (and has no family that has a home address either)? How should a backpacker fill out that field? Should he leave it blank? Can he write a non-residential mailing address instead? Do immigration/custom officers even care about that field?


SOLUTION:
How should a backpacker fill out home address field in immigration/custom cards