I take my BOB camping or on overnight trips, what if something happens when your overnight somewhere and you can't get home for three days, then your bob becomes needed. What I do when I'm home is have my bob handy in the closet and on a shelf above it are enough food and other perishable supplies to re stock it should I use something so that when I return I can drop those in and have it ready to go. Also those supplies are part of my bug in stuff so in addition to the three days supplies in the bob are an additional three or more days right there in the closet.
Then if I do go somewhere for more than one night I'll take some of those supplies along as well since I anticipate on using a few.