Enormous breakfast / lunch, and bring crisps, energy bars, chocolate, water, fizzy drinks, sandwiches with you. If you get shaky, eat and drink something. Put your socks and a woolly hat on if you have your t-shirt off.
I've also worn my tracksuit bottoms the last few times, way more comfortable than lying around in jeans.
+1.
Enormous breakfast / lunch, and bring crisps, energy bars, chocolate, water, fizzy drinks, sandwiches with you. If you get shaky, eat and drink something. Put your socks and a woolly hat on if you have your t-shirt off.
I've also worn my tracksuit bottoms the last few times, way more comfortable than lying around in jeans.