Good thread!

Ah, lets see....

Binoculars
zip ties
water bottle
knives (multiple because I always lose one every season ...)
Big Chief Tablet. For real, my wife found one for me. I like to write alot
gloves, stocking cap, etc. in case it gets cold.
Maglite
Annual hunting laws guide Texas puts out
ammo!
peanuts....my daughter and I eat them and chuck the shells out for the birds
various half full scent killer bottles and junk
face mask even though I'm not bow hunting these days it kinda stays there
as does my release that's way too small for my hand
and the holster for my .38 pistol that was stolen 3 years ago....
batteries and memory cards for my trail cam


/shrug

probably a few other odds and ends. I picked up a cheap camo shoulder bag at Academy years ago and it still does the job pretty well.