To log into your schedule, go to https://app.fullslate.com/#login and enter the email address and password you used when registering. The login form is available in the upper right hand corner of every page on Full Slate's website. If you forgot what email you used when signing up, contact us at email@example.com.
If you are using your personal computer, check 'Remember me on this computer' and you won't have to enter your email and password every time. Don't use this option on a shared computer though, or other people using it will be able to access your account. Likewise, if you're using shared computer, be sure to click the 'log out' link at the end of your session.
If you forget your password, click 'Request reset' on the login screen, fill in your email address, and type the funky text you see. Then check your email and click the link inside; now choose a new password.