http://www.theglobeandmail.com/life...n-smaller/article14880701/#dashboard/follows/ The big U.S. airlines are taking out old, bulky seats in favour of so-called slim-line models that take up less space from front to back, allowing for five or six more seats on each plane. The changes, covering some of the most common planes flown on domestic and international routes, give the airlines two of their favourite things: More paying passengers, and a smaller fuel bill because the seats are slightly lighter. It’s part of a trend among the airlines to view seats as money-makers, not just pieces of furniture. Add a bit of legroom and airlines can charge more for tickets. Take some away and they can fit more seats on the plane.