ELC are giving free delivery for orders over £40 until the end of the year. The code was found on the bottom of an order confirmation email I just received:
"As a thank you for ordering at elc.co.uk, we would like to offer you free delivery on your next order over £40. Order by 29/12/2008 and quote DEL8 to redeem the offer."
Just tried it and it it works fine (without any confirmation of being a repeat customer). So that saves £4.95...