Yahoo doesn't send the authorization code for domain transfers -- go get it!

Yahoo is none to eager to have you leave their overpriced domain management service. When transfering a domain to another registrar, I waited patiently for the authoriziation from Yahoo. After a few days, I logged in with my old Yahoo id (thankfully I keep my records pretty tidy), and needed to hunt around their panels to find the "authorization code from the current registar".