I once bought a pair of knee high boots in Dorothy Perkins for £1, reduced from £40. I think this was a super bargain, especially as I am still wearing them and bought them pre-pregnancy!
Today was a similar bargain for £1. We went to buy a black out blind for Rebecca's room (£59!!! - the penance for having light rooms with large windows) and they were selling ex-display single curtains for £1.
Well an hour with a sewing machine later, and my hall now has curtains. Having always been a bare window, it looks homely now. So, the curtain track was £11.99 - who cares??! THE CURTAINS WERE A POUND!