Also for the Eastern Med - one early T1 trip was a 6 day epic LHR-FCO-ATH (n/s) ATH-IST (n/s) IST-ANK (n/s) ANK-IST (n/s) IST-ATH (n/s) ATH-FCO-LHR. Not very productive as IST-ANK was only about 200 miles! Later it went to a 3 day trip - 4 legs to ANK on day 1 and a n/s ATH on the way back.
(EDIT: Actually having just looked it up I find that I did it 2 days after the "main gear as airbrake" event which was one of the early points in this thread. Also it was a couple of days before Christmas 66, and in our case we positioned LHR-IST and ATH-LHR on a Comet.)