One thing most people have in common is that they love to receive gifts and attention on their birthday.
Speedeon Data Blog
According to Forbes, U.S. advertisers spend $167 per person on direct mail to earn $2,095. That's 1,300% return on investment. Furthermore, average response rates for direct mail are 3.7% compared to 2% for mobile, 1% for email, 1% for social media, and 0.2% for internet display.