Qbic Hotel London City is offering guests the chance to stay for just £1.

Between December 15th 2013 and March 15th 2014, the hotel will make five of its 171 rooms available each day for £1 to early bookers.

The promotion launches on November 12 – all proceeds will be donated to local charities Bikeworks or FoodCycle.

Offer notice is here: http://www.qbichotels.com/en/offers/

To have a chance of booking one of these rooms, you need to sign up for their newsletter. But I clicked the link and it returned me to the home page. At the bottom of the home page is a sign up field.

I think there is also a FaceBook group and that may provide earlier notice of each sale.