4 nights for 3, or 20% off weekends – at IHG hotels in Europe
The “exclusive” deal is available only to IHG Rewards Club members, but given that you can join instantly for free (link here), that’s effectively everyone.
Note that if the “4 night for the price of 3” doesn’t work for you in midweek, you will still benefit from a 13% discount.
The discounted rates apply to bookings made before 23 August 2015 for stays between 1 July and 7 September 2015.