Tomorrow and for the rest of the week the UK's most respected supermarket Waitrose is offering 25% off all wines (including fortified, sparkling and champagne) to those who buy at least six bottles in a store or 12 online. You will see below that there are many bargains here. Search for my GVs, which denote wines I felt were good value even before this discount. The selections from Iberia and South America are usually superior thanks to the diligence of buyer Nick Room but there were also some very superior Australians as a result of the efforts of Andrew Shaw (who cut his teeth at Stone, Vine & Sun). On the other hand, there was...