Well, I've always fantasized on how glamorous it would be to be making money on my expense account! But, I couldn't fudge if I wanted to. I always fly either F or full-fare Y (meaning, of course, always YUP).

My meal and hotel expenses are set by government per diem rates (even though in a great deal of the country you only get $31/day for meals - not bad if you always eat at Wendy's or Denny's, but most places I've been start at $16.99 for dinner!). You get that $31 (or whatever - in Kuwait it's $86) whether or not you actually spend it.

Any equipment I may need for a trip is fully paid, whether bought before I leave or on site.

Cabs are paid in full to/from the airport.

Am I missing ways to get more money??