Just been to my local ASDA and they have the 4GB Verbatim PinStripe USB drives selling for only £1.75!
Marked on the shelves at £10, but scan through the Self Checkout at £1.75!
44 pence per gigabyte!
There are black and pink drives, but only the black ones scanned at this reduced price.
Picked up a few, still about 10 on the shelf (in the entertainment section) of ASDA Oadby (Leicester) as of about 3pm.
Get them while they're hot!
(Receipt shows item number as 002394249061 if you want to ring around and do stock checks - although if you do this stores might get wise and re-price them!)