Bacpacjac recently started an   
office prep thread  recently and as I recall, there were some good ideas in there that may interest you. 
I read that thread again. Her situation is a bit different than mine -- she's anticipating at least a few nights being likely, where I'm looking at one night being very unlikely but possible. I also have much more limited storage and the need to look and act Socially Acceptable in the corporate environment. 
I could stash a small pry bar, though, and not get killed by the weight like I would be in my laptop bag.