Maybe I missed it in the lists (I always miss something in them), but to add to the vehicle kits:

Watch cap, boonie hat with bug mesh
Gloves, two pair insulative and one pair leather
Good to great socks
Cord/rope
Bug dope

And you can probably put a pair of socks in your briefcase as well. And if the job requires dressy shoes, a pair of boots in the vehicle kits, already broken in.
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-IronRaven

When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.