51% of emails are opened on mobile devices - don’t forget to check the mobile preview for your email! Test, test, and test again! Make sure your email looks good on all devices before you send it out. Generating witty text... One Mississippi, two Mississippi… Don’t forget to add a short preview description to encourage people to click on your email. Don’t forget to add a fun, relevant call-to-action button to your email. Time to get that bread. Keep your email subject line short and attention-grabbing.