Quote Originally Posted by Crankin View Post
+1.
I keep a spare bra/underwear in with my hygeine supplies in a desk drawer. They are underneath, way in the back. I'm a little nervous, though, because every other Wednesday the child psychiatrist who helped me get this job uses my office and we share the desk drawers. He does not use the drawer with my stuff. He's a kindly man in his seventies, and I don't think he'd be freaked out by seeing a bra, but still...
You could put them in a large envelope, or even in one of those white mesh bags that you can buy for washing delicates -- then no one but you would know they were there.

(I bought a few extra mesh bags last year, and use one to store my booties and toe covers between rides. I don't wash them every time I use them, and I figure the bottoms are unclean since I walk in restrooms and portapotties with them on, so I like to keep them separate from the other clothes in my Big Bag of Winter Bike Gear.)