a couple things i can think of off the top of my head.
-- if you can, garden or go to places you can do you pick, and can what you grow or pick.
--get those big plastic rain barrel type things for water storage. i got 2 for like 70.00 or so?? i forget. or old juice containers.
--multi gallon plastic containers from "industrial" type places. call around and see if there is a place that sells their old containers. my friends and i found a place that sold their jam containers for 5.00 a piece. really nice for rice, wheat, flour, oat type storage. as well, as things like homemade laundry detergent, and pet food.
one site that i'm using for food storage is shelf reliance. what i like about them is that they make it super easy to do your food storage. you type in how many in your family, and how much food you need for a specific amount of time, and they work it all out and then tell you what you need. you also decide how much to spend each month and they send it to you and bill you. it's actually very cool!! i just got my shipment today.
the "red" book, or "black" book is another good idea. keep all important documents in one central location.
OH and of course, do not forget your 72 hrs kits. believe me, even if there is not an national emergency you never know when you'll need to bust out these kits! and when you do, you'll be so grateful that you actually spent the time to put them together. you'll have money, food and clothes for your whole family and won't have to worry about what's going to happen in the next 24 hrs or more! so, spend some time and money on that as well as the longer term food storage!
forgot about things like toiletries, medicine, first aid, detergent type stuff ( laundry/ soap). things for babies, if you have them. diapers, wipes, food, bottles. TP, paper towels, sponges.
our ward has done several "what would you do" scenarios and the picture is just never pretty. one of my faves to think about is if an EMP went off and there was nothing "electrical" working. that would seriously impact the way we live. not only living our normal lives and doing things like getting money out of that bank, but even being able to drive a care, buy gas, or go grocery shopping. now, not the most likely of scenarios of course!!!! BUT one that makes you THINK, A LOT, about being REALLY ready!!