On Wed, 05 Jul 2006 19:49:58 GMT, raden wrote:

I pay £3.50 / can from my local car accessory shop when I buy 12 cans

If you are buying that much try a trade decorator centre and see if
you can negotiate a quantity discount. Dulux and Hammerite are both
owned by ICI so branches of the former should have a good stock of the
latter but branches of Crown stock it as well.