"Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula Try different email subject line styles to find what gets the most opens. Test, test, and test again! Make sure your email looks good on all devices before you send it out. Sit up straight. Keep your email subject line short and attention-grabbing. Let your imagination run wild. "I use PosterMyWall to create flyers for the MANY non-profit organizations that we are involved with!" - Stachia Don’t make ‘em yawn! Keep your emails exciting and brief.