Until tomorrow, Monday November 15th at 11:30 pm EST, you can get a voucher for 50% off a $50 gift card to Tanger Outlets! The site seems to be very busy so you may have to retry a few times.
You will need to go to their facebook page, 'like' them and then click on the 50,000 new likes tab. Clicking on the image should take you to a page where you can login with facebook and then fill out a form for your voucher. The discount will then be emailed to you. Check your junk folder just in case the email provider routes it there.