Something to snack on!
This isn’t applicable to everyone, but one of my triggers is low blood sugar. When my blood sugar drops too low, I can start seizing. This is why I carry around snacks in my bag! It does come in handy though. Some of the medication I take, for dealing with the side-effects of anti-seizure meds, has to be taken after food, so it’s useful to have something to be able to eat so that I can ensure that I’m prepared to take my meds. Having a snack isn’t quite as important as making sure I have a drink, but it’s still useful to be able to have it in case I need it!