Woolworths! We had the manager in our town reopen it as Wellworths. It was on national TV.
For clothes I like Matalan, Peacocks and New Look, mostly. I also like Dorothy Perkins. TK Maxx also does some good deals within all the tat.
As for other things - GAME, GameStation, Waterstones and Borders...and HMV. How I love picking up DVDs and CDs for cheap.