Not wishing to inflame the anti-Roundup factions here but to follow up
on my earlier posting on buying this in France, I can report that
L'Eclerc, a big hypermarket chain who also have L'Eclerc Auto, L'Eclerc
Bati (building & DIY) as well as L'Eclerc Jardi (gardning) are selling
in their Jardi stores Glyphosate at 360gm/l strength for 13 Euro which
at todays (poor) exchange rate is a shade under £12.

Brico Marche - usually a bit cheaper for many things, want 18 Euro for
the same product in their own brand and 33 euro for just under a litre
of 450gm/l concentration.

Hope this is of interest to some.

Bob