It’s the key to affordable white burgundyI find myself using the phrase “relative value” more and more these days. You know, when you buy something you think is a good deal, because you’re comparing it with something that’s infinitely more expensive, so it just feels as if you’re saving money. Buying Baylis & Harding hand soap because Aesop is £33. Renting a small room in London for more than £1,000 a month because at least you’re not pay