Has anybody come across a product called 'Grip-Bond'? It is apparently very good for sticking a whole range of things including dado rails and skirting boards.
I'm not sure about grip-bond, but our builder has a product that comes in a green tube called grip-fill. It is amazing stuff, and it really will stick anything to anywhere - he uses it a lot on awkward bits of skirting board etc. But BEWARE! Its nasty stuff to get off clothes, hands and anywhere you didnt want it to be. We had to wait for it to go hard and scrape it off.