I get not having food or some of the other things stored but water jugs and batteries should be pretty easy to store.
That is if you can afford them which I know is a factor.
That's true for the batteries. Water jugs it depends... if you live in a dorm room or an apartment that's more or less the same size, it would be difficult having more than one or two jugs stored since space would be at a premium.
But yeah the smaller things like batteries and a flashlight and a first aid kit should already be in everyone's place already, because those are important even beyond the emergency of a hurricane.