With my paddle kayak I just use a small tackle bag with 3600 size Plano boxes inside. I can switch these around with my other boxes. I keep the tackle bag within easy reach near my feet. Nothing fancy but it works. My pedal kayak is larger and more stable and I have a milk crate bag I keep behind my seat. Once again I have 3600 size boxes in there. That one is harder to get to and I wouldn't want to do this with the paddle kayak since it's less stable.