If you have an email inbox filled with unwanted messages, I have the solution for you.
Download the app, Unroll Me. Sign up on the app and link it your email account. Next, open the app and it will filter through your inbox. Swipe left to unsubscribe to the email or swipe right to keep the email subscription. To date, I have been able to trash 79 email subscriptions and keep 20 email subscriptions.
The major bonus is opening my emails and not seeing a flood of unwanted messages. Check it out!