travel suggestions

Okay, everyone, I am getting some wonderful suggestions in email for what to see and do in London in August, so I have decided to start a thread where you all can suggest things for a person who lives (and travels) on a shoestring. I already have gotten some suggestions from birders (they are such a great group of people) that I will share with you to start things off; David Lindo at The Urban Birder is one source I'll be contacting for more information and I'll be purchasing Where to Watch Birds in the London Area by Dominic Mitchell. Besides birding, I plan to see as much of London as…