Thinking about a few basic priorities that are not expensive ...
Get a spool of thick weed wacker plastic at Home Depot, some paracord, a 1/2" dowel and pot of boiling water. Make lots of coiled leashes with a simple loop at each end to receive an interchangeable clip or a double-sided strip of self-sticking Velcro. Leash or stow everything you don't want to lose.
If you are going out before light, buy 3-pack of mini LED camp lanterns at Costco. Hang one off the hook of your gaff in a pole holder behind you so you don't get run over in the dark.
A good, general purpose, inexpensive, sharp fishing knife hanging on a string around your neck or hat string for easy access.
https://www.amazon.com/Morakniv-Comp...s%2C191&sr=8-3
A plastic safety whistle to attract attention if you need help or to avoid imminent collision.
Game clip tethered to your kayak.
A nail clipper for cutting 30-40 lb. monofilament leader so you don't chip your teeth.
Strong protective sun block that won't oil-burn your eyes.
Lightweight, long sleeved, fast drying, atheletic UV blocking shirt. A cheap one from Costco works well and it's nothing to worry about if you have to cut it up for bandages or a tourniquet.
Broad brimmed fishing hat with a chin strap.
If you wear glasses or sunglasses, get a rubber hose type sports-retainer for around your neck so you don't knock them off and lose them to bottom of the bay.
A wire cutter strong enough and sharp enough to cut hook shanks if you accidentally set a hook deeply into yourself.
Needle-nosed pliers.
A couple of $20's in a small ziploc plastic bag in a secret pocket to buy bait at the bait barge, or to drink a cold beer or margarita when you get back.