In 2001 a friend shared a link to this paper, ‘Folk Computing: Revisiting Oral Tradition as a Scaffold for Co-Present Communities’. There’s one part of it that really struck me then and I’ve thought about many times since (and it’s more interesting than the academic title sounds).
Except sometimes you don't want the booking reference at all, because that's not the number you need to collect your ticket: http://www.gyford.com/phil/writing/2014/08/12/booking-reference.php
London’s National Maritime Museum has a new exhibition opening soon, Samuel Pepys: Plague, Fire, Revolution. It runs from 20th November to 28th March 2016. Their blurb: