Sending an email to your friend is not a big deal. But do you know that you can put a picture in the subject line of an email? Although you may not find a direct option in Gmail or Outlook.com, it is ...

In Apple’s Messages app, you can easily add emojis with a quick click on the little happy face icon in the iMessage text field. If you use a chat app like Slack, you can do the same. But what if you ...