Coming back from vacation means my email box will be overly full. Besides the messages I have to attend to there are a pile of daily and weekly newsletters I get. I usually just go through and delete them, but they keep coming back so I’ve decided to remove myself from the mailing lists.
Any reputable email provider will give you an option to unsubscribe from their mailer with a simple link on the bottom of each message. It only takes a second more then just deleting a message; well worth the time for messages you don’t read anymore.