Several here have the right idea, especially Alexis -- I use the same plan. Your co-workers would not be expecting to find "Joe" if they see JoAnne with the wife. Unless you shriek "all is lost, woe is me" at the top you your lungs in your male voice upon seeing the co-workers, you can just slip away while they take up conversation with your wife. As is often said here, people don't see what they don't expect. You in full femme - they don't expect it, they won't focus on it unless you draw undue attention, and you could probably walk right up to them and ask the time, get an answer, and walk away and they'd be none the wiser. JoAnne is not expected to be Joe - their brains won't process the convergence unless you really make a scene.
I urge you, DO NOT allow this great gift from your wife to slip away. You'll regret it immediately and spend a great deal of time and energy second guessing yourself.
All of this IMHO.
Good luck and best regards (and get pictures of yourself at the Woman's Expo and post 'em).
We're all pulling for you.
Rhonda
