I have not read much on the prep subject. I tried to get what i thought would be useful to me. One of the hoarded items i find most useful and am most proud of having is so far not on anyones must have list. Industrial clear plastic sheeting. i have 600 yards of 36" rolls. I plan to use it as a dust cover for a small area of the basement after sealing the seams for fall out. Collecting dew and rain water. roof leak repairs. sled for dragging other materials over soft ground. hasty green house for individual plants or full beds or maybe even a full framed free standing out building. storm boarding windows to keep glass from flying about to cauk a root celler any number of other things. Thoughts?