For the entire day of Thursday 19th April 2007 (local UK time), sellers who list item(s) using the Auction-style, Auction-with-Buy It Now or Buy It Now Only (Fixed Price) formats in an eligible category, will pay a reduced 10 pence (£0.10) Insertion Fee per item they list

http://pages.ebay.co.uk/sell/2007April10p/index.html