I love this website. Nowhere else would respected, intellegent people - experts in their field - take time out of their well paid jobs to settle an arguement between brother and sister about how many sweets they're allowed. Brilliant.
By the way, If I'm driving 50 miles to the seaside, at what point of the journey can I start saying 'nearly', when my son asks "Are we there yet?" I think straight away, my wife thinks that strictly speaking we should only say that when we're past the halfway point.