Junk mail seems to annoy anyone with a mailbox. No matter how many times you sign up for "do not mail" lists or write "unsubscribe" and send the mail back to the sender, it seems to never end. The biggest culprits of junk mail are companies who send out advertising supplements in the mail. These envelopes are stuffed with coupons and advertisements and can often appear to be real mail from the outside. To remove yourself from these mailing lists, contact the biggest mailers: Red Plum and Val-Pak. Go to their websites at save.com and coxtarget.com to remove your address for good.