RE: Diet and workout for an executive
I'd be interested in the replies to your post Silky as I have the same problem of living out of a suitcase for days on end.
One thing I have done is putting whey powder in a plastic food bag as it's smaller / easier to pack than a tub, I've also got some MRP shakes in individual packets, which are easy to pack, and mix them up for the long drives home from work at the end of the week, if you get MRP in bulk there's no reason why you can't put it in food bags like the whey. I also make some protein flapjacks with fruit and nuts in as a morning / afternoon snack which look sort of similar to the off the shelf ones.
Whilst none of those things are perfect it at least means I'm getting something and not skipping meals too often. It also means I don't have too much bulky stuff to cart around with me.