The message
from Janet Baraclough contains these words:

white expanded polystyrene sheets for
insulation and light reflection. What kind of shop uses that kind of
packaging,any ideas? ( I know I could buy sheets in B and Q, but we like
things recycled, and free).

'White Goods', haunted fishtanks etc.

--
Rusty Hinge
horrid·squeak&zetnet·co·uk
http://www.users.zetnet.co.uk/hi-fi/tqt.htm