What is your shelter options in your BOB'S and your other kits?

i have small rain poncho,large orange survival blanket w/ survial instructions on it,trash bag.---my medium size kit

my BOB-survival blanket, rain poncho,several trash bags, and i have a tube tent which im seriously considering subsituting for a tarp(the ones you cover stuff with, and its not the biggest tarp ever). but i would have to stick it into a vacuum sealed bag so i could save lots of space.

thats all that comes to mind