Another store TRIPLED coupons about twice a year. No problem buying like $400 worth of groceries for like 50 bucks that way. It took some effort to sort the coupons scientically but well worth the time spent.
I hear they have man-purses European carryalls handy packs that thing that some guys wear (in the US, not Europe -- the soccer hooligans would take issue) with compartments to file coupons.