I’m worth the wait "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Boost your email opens with a punchy subject line. Not just a pretty interface Don’t forget to add a fun, relevant call-to-action button to your email. Test, test, and test again! Make sure your email looks good on all devices before you send it out. I wish I looked as good as you while waiting Keep your email subject line short and attention-grabbing.