My wife is a Flight Attendant and I have been thinking about what sorts of EDC stuff would be good for her. She spends 2-3 nights in hotels out of town, and has to pass through a metal detector and DHS checkpoint every day going in to work.

What I have assembled for her thus far is:
Fox 40 whistle
6' duct tape
Photo II microlight
LED flashlight (I plan on getting here an E1E or E2E for this)
Small Brunton compass

It was a struggle getting her to carry this much (she doesn't like clutter she says). Any ideas on other things and some rationale behind it?

Thanks.