I’m pretty good at keeping things. I go through some of my cartons from time to time and I can find biros I bought in Japan (that was 12 years ago), a hairbrush I found in a handbag I bought at St. Vincent de Paul’s and mismatched plates from my first crockery box-set (white and lime green with a navy-blue trim from Wedgewood: it must have been discounted, what was I thinking?) . But I looked at my purchase history on Grey’s Online and Kemeny’s and I have to say I wish I had kept at least one bottle out of the various dozen-bottle cases I purchased over the years.