"Tackle box" question

[Needlefish]

Need ideas for upgrading my tackle system while kayak fishing...........This is my "evolution"............ what is everyone doing ?

1) When I first got my yak, I used a regular Plano tackle box. Obviously too bulky and almost lost it a couple of times in the surf. Not a good choice!

2) Changed to soft tackle bag that held 4 plastic storage containers.......better, but found out zippers would get sand and salt in them and would not open/close. I even broke a few zippers on one unit.

3) Just used plastic storage units and velcro to bottom to kayak deck. Good if you have one unit, but I have 3.........one for plastics, one jigs, one spinner baits. Too many units using too much deck space. Also tried to bungee boxes together, but if I wanted to access one, then the other 2 are loose and get knocked around.

4) Got rid of velcro on storage units and just put them in my milk crate box that I use for my dry bag, drift sock, etc. Good idea but not easily accessible since the box is behind my seat. Having the crate in front of me toward the bow seems ackward.

Sorry for sounding like a perfectionist........ guess I'm looking for accessiblity (something in front of me), durability, stackability, that does not impede paddleing/fishing..........any ideas ?