Once the official schmoozing was over, a select few diehards staggered to the pub for post-party drinks. Among those displaying impressive staying power were Royal Mail's Richard Stephenson, Salt's Andrew Last, Eulogy's Adrian Brady and Downing Street's Vickie Sheriff, complete with fold-up bike ... One of the big climbers in this year's Power Book was Tesco's corporate and legal affairs director Lucy Neville-Rolfe. The Mail on Sunday reported that she was seen sporting an intriguing electric blue streak in her otherwise black hair. Clearly a cunning disguise after she was name-checked by that rascal Stephen Byers in the 'lobbygate' sting ... The Agriculture and Horticulture Development Board may have embarrassed a few of its PR agencies this week. In a surprise move, it sent out the results from a recent tender for the Potato Council. Everyone involved was informed that 3 Monkeys, Porter Novelli and Wild Card PR received low marks for their presentations on consumer PR. Oops ... Finally, who is the haughtiest hack of them all? A disgruntled PRO directs us towards the Twitter feed of Amanda Baillieu, editor of trade mag Building Design. One tweet stated: 'My opening salvo in my war against PROs is a filter to remove anyone who addresses me chummily as Amanda.' What a charmer!