Hmm, my BOB is non-seasonal, in that it is packed with the basics. I augment with seasonal/situational items on my way out the door, ranging from cold weather gear to extra water and food to whatever I see that I can get in the back of the pickup.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)