I look back to not that long ago, and I seemed to be able to cram so much into a day: a long working week, a tough job, watching football, tending an allotment, making wine. And now? Well, I feel I've had an exhausting day. But all I've done is a quick shop at Aldi, a bit of cooking and paperwork, and got stuck in a traffic jam (2 miles in half an hour). Am I getting old?