We've been using a variation of this for the "customer dashboard" part of the website (we make desktop software). The login page defaults to "email me a login

We've been using a variation of this for the "customer dashboard" part of the website (we make desktop software). The login page defaults to "email me a login link", but once they get in, the customer is given an option to set up a password. If they do, we drop a cookie and then the login page defaults to the password-based form. If they don't, they keep seeing an email-based form. https://imgur.com/a/1D84F https://imgur.com/a/1D84F The bonus part is that the "Forgot the password" form is essentially the same as "Email me the link", so it's possible to pack all three variations of the form into a single page: https://i.imgur.com/kBNBsd0.gif https://i.imgur.com/kBNBsd0.gif - pardon the ghosting, it's a gif encoding artifact. We had this up for a couple of years now and it works really well.