Don't forget the most important item. A FULL TANK OF GAS.
I have the light sticks vs flares, they last longer. having flares are good more so If you needed to light a fire and all you have is wet wood.
Anyone else have a red or green laser pointer besides me? They really get the attention of aircraft in your area, real fast.

Change of clothes
socks, pant & shirt. dry is much nicer than wet.
waterproof shoes or as me late grandmother called them galoshes .
TOILET Paper.