A little-known fee is about to increase:  When an airline goes out of business in the US, other airlines are required to take passengers for a $25 fee.  Not anymore.  This fee is now doubling to $50.  It’s hard to complain, though, as it’s a pretty generous program (there’s really no reason why one airlines should have to deal with the failure of another—it’s certainly not Continental’s problem when Midway Airlines went out of business).