Of course one of the things you see more clearly from the top floor is front gardens. Sometimes we have seen beautiful front gardens, sometimes the odd wonderful plant, like the ceanothus and wisteria we glimpsed from the 15 all those years ago. And sometimes we have enjoyed displays of garden ornaments, but passed too quickly to get the camera ready for gnomes, ducks, abstract forms or whatever.
There are times when the teacher in me mutters 'could do better' but of course people are busy and cutting the grass and controlling the shrubs may be all there is time for.
There are rules about this, dating back to 2008, when the government, worried about flooding, tried to ensure that only permeable materials were used, but newspapers go on reporting the problem, like the Telegraph earlier in 2012.
And public spending cuts are likely to lead to less enforcement rather than more, so those of us lucky to have Freedom Passes and therefore use our cars less (or indeed, not at all) can't really go all pompous about wanting pretty gardens to enjoy on our bus rides