Popped into my local Argos earlier, they had this offer on display. Seems to be available online too. Reserve & collect to avoid delivery charges.
Buy 10 x Philips Genie 11w E-ON Energy Save Bulb (430/1114) and/or 10 x Philips Genie 14w E-ON Energy Save Bulb f(430/1224) for £1.00. To receive this offer add item 10 times to your trolley. Offer ends 10th November 2009.
Bayonet cap fitting only.
Thee link is for the 11W (60W equivalent). See the link below for the 14W (75W equivalent) http://www.argos.co.uk/static/Product/catalogId/1500001801/partNumber/4301224/Trail/searchtext%3EPHILIPS%20GENIE.htm