Backup change of clothes?

[orionz06]

I have found a spare set of clothes to be priceless on many occasions. I use a dry bag.

I always have an old pair of waterproof rocky boots and a pair of shoes.

[4thPointOfContact]

Number one rule I learned when installing computer stuff in "new construction" always have a roll of toilet paper in the back. Too many times there's been none to be found.

Aside from that, I've always had one complete set of clothing as spare because sometimes you just wind up having to get into the crawlspace of someone's house and it's slick with 5yr old mud.

What is in the back of my Subaru right now is
a three-pack of brand new store-bought underwear
a three-pack of brand new socks
a four-pack of undershirts (couldn't find a threeper)
... all in store packaging, brand new.

The rest is just the usual, silly stuff we all imagine we Might need one day and hope we never do - -
poncho with liner
spare boots (jungle boots for me since they pack down nicely)
empty Nalgene bottle with a "survival straw"
couple packages of instant food
arms, ammunition, load bearing stuff

without arms/ammo it comes down to just about 20lbs and one bag.