From Amigo is a "From"-address Mail plugin which helps organise the "from-line" when you have multiple accounts. This will save you time and make you look more professional. For example, you may have a work email account setup in OS X Mail. You may also have a personal account setup to email friends, family, etc. It can be embarrassing to email friends from the work account, and you don’t want to email your boss from your personal account! Requires no setup, beyond installation!