大象传媒

It doesn't make me very popular with London 2012 organisers but I'm not a great fan of Olympic anniversaries - 1,000 days to go to the Games and all that.

They are great for people who collect Olympic badges - and, believe it or not, Beijing produced loads of pins with various "days to go" and the same Chinese company is doing the badges for London - but they mean little to the rest of us.

But there IS a significant Olympic anniversary on 16 January. It's going to be the halfway point between London winning the bid in July 2005 and the opening ceremony - three-and-a-half years gone and three-and-a-half to go.