I have one large tackle box that I pull tackle from before leaving the house, camp etc. This tackle is put into the small clear boxes which then go into my small 14 LT (850 cubic inches) backpack.
I prefer a small backpack as it leaves both hands free as compared to a duffel bag that must be carried in one hand or slung awkwardly over a shoulder. The backpack is big enough to carry water bottles in the external pockets, carry a small lunch, light sweater, extra reel and other required gear yet still small enough to stow under a boat seat etc.
_________________________
Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.
John Lubbock