"I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Don’t forget to add a fun, relevant call-to-action button to your email. Opening the door to unlimited creativity… Generating witty text... Let your imagination run wild. Boost your email opens with a punchy subject line. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Keep your email subject line short and attention-grabbing.