Around ten years ago when I visited London I purchased a weekly underground
travelcard which gave access to all zones for one week. I remember I had to
have a photo ID with it. I found this to be a better deal than the daily
travelcard which could only be purchased after a certain time in the morning
(after 9am or 9:30am I don't exactly recall). Are these weekly travelcards
still available? Also how could I purchase one as I don't remember exactly how
I did the last time?

Any help on this matter would be greatly appreciated.

Thanks,

Spike