I'm going to a festival in a couple of weeks and I need some advice on sticking to plan. They've changed the rules so you can only take in a small bag (no bigger than a piece of a4 paper) so can't take a cool bag or anything like that. I can take things like alpen bars for my healthy extra b, and obviously things I can syn, but not sure what to do about meals. I really don't want to come off plan if it can be helped. Any advice?