Great suggestions Liathmor!

You're so right about tight packing. I'm glad I have a day off to play.

I subbed a primaloft jacket for the fleece, scrunched into a big ziplock. (warmer, smaller and lighter!)

I'll pack some MREs in my desk drawer and threw one main meal of one into the pack along with a heater). I'll also store some more meals in the office kitchen cupboards.

That therma rest is a good idea. i've added it to the shopping list.