my new system goes a bit like this.
I use a bankers box with those hanging files and manilla folders. you could of course use a filing cabinet, but i can bring my box into any room of the house to work on so Im still w/ the kids.
anyway, my box has 3 hanging folders. i have one big folder for edibles and another for non edibles, each folder has manila folders w/ categories on them, fridge, freezer, produce deli and meats etc. broken up the same way my binder is.
i have a 3rd folder in there for "need to clip sort etc" so they are all in 1 place, all new coupons and trades go in this one so I can keep the paper piles out of the way.

its a pice of cake to grab my fridge folder and put it all into my binder at once when i have a minute.
my binder still has a lot in it, just not everything.
So far, its been easier to find what I need before the coupons get into my binder than it was to sort through big crazy piles everywhere.

does that make sense at all???