Can I schedule emails, and how far in advance can I?

You can schedule your email launch date in the final step of the email creation process. The default option is to send as soon as possible, but if you want to schedule an email to go out in the future, click on the "change" link next to "As Soon As Possible."  You'll then have the option to schedule an email up to three months in advance. If you change your mind, you can find that email in your "Sent Emails" folder and unlaunch it before it is sent out.