Originally Posted by
antichef
... with the additional restriction that you do not have to accept any of those variously issued notes in any of the other areas!
Scottish notes generally get accepted, sometimes with a little encouragement ("it's that or nothing, pal"), although the new Clydesdale notes are a lot harder to spend.
The rather more confusing NI Danske Bank notes (I'd love to see if someone tries to pass off DKK notes as Sterling) are somewhat harder to spend.
I've found that in the Channel Islands, most people ask you if you want English notes in change if you're a non-islander.