Know this: the competition for table space at these joints is stiff. The most intimidating and alluring thing about The Ivy, Spoon+, Nobu and Le Caprice is that, most of the time, they play host to a far more glittering crowd than yours. - ie to visiting Hollywood dignitary, the passing Natural Nyloner, Tom and Nicole, Gwyneth and Matt, Elton, La Hurley and Posh. With received wisdom proclaiming that each restaurant holds back three or four of its best tables in breathless anticipation of just such a starry visit, we are mocked by the knowledge that the very Ivy seat we would have given up our children to claim will remain empty all night, simply because the A-lister of the moment has failed to show.