Dick Knights Mumm
Take me Home Falmer Road
It was blue. Recall you had a beard/goaty and think you were with a lady? If it was you, you arent old enough to be Dick Knight's Mumm (unless that's his champagne vintage!).
My only advice re marathon training is little and often, with 4 or 5 18-20 milers in the 6 weeks before the big one.
Ta for the tip. Maybe not me then.