I started with a wicker creel that I bought from Herter's in the 60's. I now use a Patagonia vest for stream fishing, since I have not found anything else with the combination of comfort and capacity. I usually have 8 fly boxes, plus all the other stuff in it. For carp fishing and saltwater wade fishing, I use a fanny pack. I only have one or two fly boxes then and the fanny pack is cooler than a vest.