Originally Posted by Oskeewowow

It blows my mind when Captains are stingy on starting the APU (to save fuel), yet start our second engine way too early, taxi at a snails pace, fly way too fast, take lower altitudes because of a bump or two, start descents too early, etc...

Sure the APU burns gas, but there are other way more effective ways to save fuel that do not make the px sweat their balls & whoo-has off.