I've never really understood "bug out bags". I can't think of a single emergency/SHTF scenario where I have 3 minutes to get out of my house AND I will not have any possibility of help for days/weeks/months. The only disasters that would really force me out of my house are very localized (tornado, earthquake, or fire) and I'd still be able to get support pretty nearby. For something more regional/national/global (hurricane, power grid failure, economic collapse, war, TEOTWAWKI), my house is still going to be there - why am I leaving? Sure, I should be keeping stuff around my house to live through some days/weeks without help, but I don't need it all in a pack for grab and go. If the rule of law disappears and there are roving bands of marauders who might start shooting at my house or burn it down, then I'll pack one.
A "get home bag" makes more sense to me. If I'm at work or out of town, having some basics to get me home isn't a bad idea. Maybe there's a freak blizzard, power outage (when I have low fuel), EMP, etc. and my car isn't viable. I can see having good long distance walking footwear, cold weather clothing, sunscreen, some power bars, a couple of water bottles, and a map in your vehicle for that scenario.