I’ve just discovered Big Ox at Harvey Nicks – its a blast of canned oxygen designed to give you a mid-day boost when you feel your energy levels slumping. I’m quite a fan of oxygen having tried it a few times, and it is defintely a pep. However, I did recently hear that BAA and World Duty Free axed their supply of liquid oxygen as passengers discovered that a few drops before boarding made the in flight refreshments ultra-potent, and consequently, got the passengers ultra-pissed. Big Ox, www.harveynichols.com from 6 pounds.

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