I use these Stanley rolling tool boxes. I have one set up with about 3 days worth of food and water. I also have another set up with ammo and other gun stuff. `If SHTF it will be much easier to just grab and go.

If i need to scout or go scavenging i have a Maxpedition Roly Polly Extreme. I still need a big pack tho i think im gonna get a Snug Pak Rocket Pack in OD.