I like this Oxygen idea, might ask dad to get me a little tank lol.
Another method I have found that I can report on this morning seems to have worked!
After drinking over 10 pints of wife beater (stella) over the course of a day/evening simply come in and order the saltiest chinese you can think of. I didn't do this intentionally but the place over the road surpassed themselves lastnight with truly epic amounts of sodium chloride added to their not particualy nice to start with dishes.
After I had got up in the night for 2 pints of water the 3rd time to cure the raging thirst I lined up 6 pints of water on the bedside table and managed to get through all by this morning
Consequently I am feeling pretty ok this morning and am not dreading the 200 mile drive to my dads for a Christmas meal/**** up...