Kayak Accessories? What else besides the paddle and PFD?

So I finally pulled the trigger on a kayak! I'm wondering what others have learned they needed or wanted on their kayak after owning it for awhile? I'm thinking two clamp on rod holders to hold the rods in front of me and maybe a clamp on umbrella so I don't get cooked in the sun??

I always bring my small fraybill folding net and a 8 lb anchor.