I'm occasionally a bit slow on the uptake, so I missed this gem of a contribution from questions to the First Minister in the Welsh Assembly.
Eleanor Burnham, for it is she, chose to raise widespread concerns about traffic delays on major roads (caused by work to cut the mid-carriageway grass) in her own inimitable way:
"If there is to be any cutting of grass, can it not be done at night? Could the grass not be concreted over, so that there is no need for grass-cutting?"
Perhaps Eleanor is ahead of her time. It would certainly solve problems with the pitch at Wembley.
The idea has yet to become official Lib Dem policy, but you'll remember where you first heard it if and when it does.