The first time I flew with our baby, I had no idea how I was going to handle all of the necessary gear.  She had a seat on the plane, so we needed a car seat onboard (and, of course, in our rental car).  We also needed a stroller to get through the airport and for our trip.  The thought of carrying all of that stuff was a little intimidating.  Then I saw the Sit N Stroll car seat/stroller which definitely resolves this problem! 

The Sit N Stroll is like a car seat on wheels.  I has a 5 point harness, and the wheels very easily pull up into the base.  It can be used as a rear facing car seat, a forward facing car seat, and a booster seat.  If you push the wheels out, it operates as a stroller, and you can actually wheel it right up to the airplane.  We used this on our whole trip, from arrival at the airport all the way through our return.  It’s very durable — we’ve taken it on four airplane trips and it still works great.  It also installs quickly in the car.  I am always amazed at how many people actually stop us in the airport to ask about this!

You can find the Sit N Stroll at Amazon.com.