Originally Posted by
ccengct
You can buy your own seatbelt extender. Technically it's not authorized, and a sharp-eyed FA who knows the rules will not let you use it. But 95% of the time, you can get away with it.
Why on earth would you bring your own (which may or may not be safe and compatible with the safety belts on a given aircraft), rather than using one supplied by the FAs?