Most large UK stores (especially large department stores in London such as Harrods) have stock clearance sales just after Christmas. There are usually some fantastic bargains to be found, often among top of the range and designer brands. You will need to arrive early to bag a bargain and long queues often form outside some of the more popular stores before opening time. The real fanatics generally camp outside store entrances so they can be first in the queue.
Location: London and most major UK cities.
Date: Most big deparment stores start thier January sales on Boxing Day.