Justin,
John is right on the money!!! I organized mine by type of fly & he's right, you end up with too many boxes. Here in northeast Ohio, we are having AWFUL weather this week (snow on ground now), so I will go to work re-organizing. I own one of those large softsided tackle bags with 5 plastic boxes that have adjustable trays. I will keep my "inventory" in those & set up a "trip box" containing the flies of all types that I think I need that day. I will keep my large bag in the Jeep for replenishment & change. BTW, that tackle bag also has outside pockets..good for leaders, tippet, floatant,etc.....stuff that's small enough to loose in a larger duffel. My large duffel holds tube fins, pump, waders, boots, chest pack, lanyard, rain gear, change of clothes.
Mike
FAOL..All about caring, sharing, & good friends!!