Reading through a list of things I won't be allowed to take into the Olympic Park for the World Cup at the velodrome next weekend, a couple of things caught my eye:
Bicycles (including folding types) - so if you cycle there you'll have to leave your bike outside Stratford Station - no idea how much parking there is there.
Drinks in glass bottles or in plastic bottles that are larger than 500ml. - so forget your 750 ml bidon.
Unreasonable quantities of food (that is beyond the equivalent of a small packed lunch). - as a cyclist many people think I eat an unreasonably large packed lunch!