But if you don't hav an enormous ego flying bag where do you keep
9 checklists,
pooleys, (or IFR plates if you're posh),
foggles,
sick bags,
old mars bars,
fuel strainer,
spare oil
lots of bits of paper,
all of your flying plans ever (just in case).
Six different types of ruler, protractor,
this years map (and last years map) plus the map for scotland for that trip you planned but never completed due to weather.
All of the pens you have picked up off cockpit floors
etc etc...
There just isn't a carrrier bag big enough.