I just wrote up a tutorial on the Tighten Blog about how to create a password-less login system in Laravel.
If you've never had the chance to work with one, the login system works like this: enter your email address on the login page, get emailed a login link, click the link, and now you're logged in. Access to your email address proves your identity without the need for a password.
This was a ton of fun to create and turned out pretty simple; check it out!