wrote on 29 August 2010 21:48:29 ...
...in the same way you're not allowed to share an Oyster with a period
Travelcard on it....

Another question I can't answer to my satisfaction on tfl's site: Is a
Travelcard loaded onto an Oyster the same thing as a traditional paper
travelcard? eg: it can be programmed to be effective 1, 3, 4 or 7 days?
If so, maybe that would solve my dilemma (or exacerbate it!).

Paper Travelcards are only available for 1 day (peak or off-peak), 7
days or longer (not 3 or 4 days). You can load a 7-day or longer
Travelcard on to an Oyster card, but not a 1-day Travelcard. The
benefits of a 1-day Travelcard are achieved by capping the PAYG charges
for travel on a single day.

--
Richard J.
(to email me, swap 'uk' and 'yon' in address)