I’m worth the wait Try different email subject line styles to find what gets the most opens. "Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Let your imagination run wild. Boost your email opens with a punchy subject line. Keep your email subject line short and attention-grabbing. Sit up straight.