There are many signs that you’re getting old, my friends. That sighing/groaning noise you make as you get on or off the sofa. Creaking bones and muscles as you mentally hark back to the Good Ol’ Days when you used to run up the stairs two at a time instead of an arthritis-like trek. The shock of spotting that grey hair or, worse, pube. Finding yourself, inexplicably, going willingly to a garden centre or Homebase on a Sunday — I did it today, and I am only 55! Britpop, BBC6 Music & Thinking I Was Still Cool On to the music link. I would like to think that I am…