The three applications I use every single day without fail are an editor, an email client and a web browser (I'm a developer/sysadmin). If you provide one of th

The three applications I use every single day without fail are an editor, an email client and a web browser (I'm a developer/sysadmin). If you provide one of those, I'm going to see your brand all the time, even if I'm not directly aware of it. That's quite a powerful position to be in.