I got a bus pass for one of those city tour buses which wasn't exactly cheap but I hopped on and off all around London so got to see a lot more than I'd see by walking (London is a BIG place). I think I was most impressed with the Tower of London. In the evening I found a nice session (well, more of a gig really) in an O'Neill's pub somewhere near Soho. I was staying near Hyde Park so bought bread, cheese, etc, had a picnic in the park and took the leftovers with me in my shoulder bag.

Don