I returned from Wales today, having gone down for the weekend for a friend's 18th. In all I spent 13 hours travelling and I only spent 3 hours partying in Swansea. It was excellent though, we went to Time.
However the reason I spent so long travelling is due partly to the circle line on the London Underground. The tube was sufficiently delayed for me to miss my train there, causing me to wait an hour for the next one. I then found that coming back it prevented me from catching my train back to my home suburb of Dulwich after getting back to London.
I don't know the ins-and-outs of the PPP tube plans and which arugment is better but they need to sort something out pretty damn soon or there will be a spontaneous uprising in London.