In the mid 70s the bus was 5p per sector for spotty little oiks. So I used to get the earliest pssible 109 from Purley to Brixton, a bus from there to Hounslow, and another to the central terminal area. It took several hours though, and with a little more pocket money, train and tube became de rigeur, and eventually bicycle via Banstead Downs, Tolworth, Hampton Court and Feltham. That took about an hour and a half.
Used to visit AHS as well - I eventually gave all my postcards (mostly freebies from the airlines) to some kid at Gatwick who had just started collecting. Some years later I visited a collectors' fair at Crawley and was amazed to see how much some of them, and the airline timetables I'd thrown out, were worth!
