A short 'thank-you' note should suffice.
I get your point, but occasionally there's something good on TV...
I didn't say I owned the place I live in. I think the point is that things could get a lot worse if any of the following happen: a) alternation is scrapped, b) more night flights, c) third runway. This webtrak tool helps remove the handwaving from the debate, which is nice. And for house-hunting it's invaluable.