I believe in the value of email marketing. With a worldwide average return of $36 for every $1 spent, it's the most profitable channel a business can invest in. And there are several promotions and deals that I want to appear in my inbox.

But none of that stops me from being annoyed at irrelevant emails or overwhelmed by the daily flood of messaging. I've unsubscribed from many lists because I got too much content that didn't interest me. I even have a system where I put businesses "on notice" in my inbox. They've loaded me up with too much straw, and we're approaching the final one - the one that breaks the camel's back.