Did you know that you can link accounts so that you can access more than one account from a single login? Well you do now!
When accounts are linked they will show up in the account drop down at the top left in the navigation bar.
To add an existing Osmek user to any other account, simply attempt to create that user in the new account. Osmek will tell you that the user already exists, and ask you if you want to give them access to your account.
Here's a video showing how it's done: http://www.youtube.com/watch?v=_MSJaggQDZM