According to Statista, there are 3.9 Billion email users by 2019, and for sure, they will be growing to more in the coming years. When several other businesses are already using email marketing as one of the powerful tools, you need to try using some different ideas that can make you stand out. You may have an amazing story to share with your customers or have a discount coupon for them inside. But, it won’t make any sense unless they open it. That’s something that makes you picky about your subject lines. Don’t elongate; rather, make it worth opening. It should be itchy to make one check and explore more.