Lien Foot Plant...

Right,

--> Berocca bought and administered.
--> Water drank before, periodically in-between and after.
--> Two hours full on indoors skate.
--> Packet of ready salted crisps and isotonic lucozade on the way home just to supplement the hydration and salt levels.

Let's just see if I can avoid my usual skate hangover.

[edit]
So far so good, skate sweat hangover averted.