I have also made underground caches of supplies within walking distance to my house. These caches contain 3-4days worth of food, medical supplies, a gun and supplies of ammo.
If I'm driven from my home I have a 'retreat' spot or two where I can survive and gather my wits for a possible retake of my house. These cached supplies will afford me that opportunity. Those caches are my 'bug-out bags.'
I'll give that some thought. Thanks!