Originally posted in 2008 and extended into 2009 and now further extended into 2010. I don't think it's been picked up on since the last thread: (http://www.hotukdeals.com/item/339736/bogof-entrance-to-selected-meetings) but the BOGOF promotion is still running.
Basically phone up to order tickets, which get sent in the post prior to race day @buy one get one free. Max four per household and makes a great day/night out!
Applies to 36 racecourses up and down the country (various dates).