ExitBuddy

Subject lines with six to 10 words perform best, generating a 21 percent open rate, well above industry standard. Those with subject lines containing five or fewer words ranked second with a 16 percent open rate, and those with 11–15 words returned a minimal 14 percent open rate. Despite this, the majority of emails sent (52 percent) had subject lines in the 11-15 word range. http://www.entrepreneur.com/article/231863

1. Define the problem and solution space…Create boundaries in the idea-generation process. 2. Break the problem down. Use a visual technique, like diagramming. 3. Make the problem personal. How do you make a business problem personal? By getting down in the trenches and observing the individuals who are affected by the problem (and who would also be affected by your proposed solutions). 4. Seek the perspectives of outsiders. In other words, don’t solve the problem in a vacuum. http://99u.com/workbook/21717/7-steps-to-make-your-brainstorming-more-actionable