Hi, I'm the developer of Evernote Account Switcher and I also don't understand why Evernote won't make this on there own. I mean allow multiple accounts in one application. Sort of like identities. This can be done. The only thing that might be a problem is spotlight searching. But I think most people search within Evernote. What I do with Evernote Account Switcher (EAS) is the following. In your Library/Application Support/Evernote folder is the place where Evernote looks for its information. This done through subfolders like data, external edits, logs, etc. EAS makes an extra folder with this folder called Accounts. Within the accounts folder are folders for every account you own with there own data,external edits, logs, etc folders. And what EAS does is link to this account folder when you switch. This way Evernote looks at a different set of folders when you switch. Now in the last week released version of EAS the keychain is also changed for easy switching. I've found this a pretty easy but stable solution... Having multiple accounts upon at the same time however can't be done at the moment. I'd suggest you use the sharing option when you want this.