There are some really cool products on the market for travelling with kids and I see a lot of them.
On our last flight to Maui we chose to use the gogo Kidz Travelmates so we could wheel the twins right up to the gate in their favorite (and safest) car seats, the BRITAX Roundabouts. There is about a 30 minute walk in the Vancouver airport from the domestic arrivals to the International departures and the gogo Kidz allowed us to get there super fast. The kids just leaned back and enjoyed the ride!
For the holiday season we will be renting out a selection of gogo Kidz Travelmates for your holiday travels ($35/trip).
You might also be interested in the CARES harness (on sale right now for $55.95 at (www.amazon.com ). As with everything, make sure you check out the customer reviews before deciding which travel accessory is right for you. This one has been getting mixed reviews and can only be used on certain airlines.
The Sit n Stroll car seat/strollercombination from by Lily Gold is also another option to get you to the gate and on your way. A much bigger investment at around $250, you can pick one of these up online (www.strollerdepot.com).