Spent the morning pulling up nettles and brambles which had grown over some old corrugated sheets that came off an old barn years ago.  I want to upgrade the compost area into a managed system as recommended by Monty Don on Gardeners World. The Webmaster remembered about them and guessed they'd be the right size to line and partition the bays. Fortunately they are, otherwise the scratches and stings would have been for nothing. Going to collect a shredder tomorrow, second hand from the Webmaster's dad. Hope making compost will be as easy as Monty made it look!