Why wouldn't you have access to your car kit? You don't drive to work?

In winter I'd have a few chemical hand warmers in there.

I'd rather have extra glasses than contacts (especially if they are daily disposables).

Ear plugs (your office mates may snore, etc.)

Blinders (so your office mates can have lights on if they want)

Sore throat lozenges, Lipton Cup o' Noodles packets.

Fleece socks. Deoderant

Cards for playing poker