In reply to Brendan H:
Towel was one of the things I thought was probably useful, for the beach, for towel drying clothes and to avoid the gaze of the Ravenous Bugblatter Beast of Traal.
picked up a 80x110cm one for $10.
How about the old 'sleeping bag liner in case of manky hostels' thing? Anyone had need for one? IV spent a bit of time in hostels and never found the need but maybe Iv been lucky...