in the festival section.

Additionally, there are loads on Scarlet Mist.com so why chance it by turning up and dealing with some Essex wideboy outside the gate?

Into any festival is easy.

1) take one collapsible water bottle (£5 from camping shop)
2) this will hold exactly one bottle of red wine
3) Stick in pocket or strap to small of back
4) walk in
5) drink

I've been doing this for about 10 years at festivals

vodka/lemonade in a normal water bottle, do they really investigate whether these things are 'sealed'...

into T in the Park this weekend, and they are supposedly quite strict on that sort of thing, so you'll be fine sneaking a good few cans in at a time!