In small print at the very bottom of emails from vendors and organizations, you will find the word Unsubscribe. Click on that word. A screen will come up that says you have unsubscribed or it may ask you for your reasons and then unsubscribe you. Then delete the email. It is best to unsubscribe and delete every day or at least every week before your email box gets too full. Consider signing up for two different email addresses, one for just family and friends and the other for organizations and vendors.