Next to handbag and bathroom voyeurism is... seeing what other girls keep on their office desks.
Some keep the standard handcreams and lipbalm, others have an entire arsenal of makeup.
I know a girl who keeps a set of false eyelashes and eyelash glue at her desk. A colleague of mine doesn't bother keeping makeup in the office but she lugs a large vanity case around with her Every Single Morning.
I have no idea how she does it. That thing is as heavy as a laptop.
Here's a snapshot of what's on my office desk: Daiso blotters, SteamCream, Sunplay sunscreen, eyedrops, lotsa lipbalms and tints, and a small compact mirror.