We use large plastic cereal bins to store our cereal. To save a little $$, we blend cereals. 1 box of Honey Bunches of oats mixed with 1 box of generic corn flakes. 1 box of Peanut Butter Crunch mixed with 1 box of Kix-type corn puff cereal. 1 box of Fruity Pebbles (or Cocoa Pebbles) mixed with generic Rice Krispies.
Cereal goes a lot further and it costs less.
I do the same thing. I don't buy most flavored cereals, but I do mix everything I buy with Trader Joe's High Fiber, which is inexpensive, filling, and plain enough to blend with any other cereal.
I also serve oatmeal or Cream of Wheat at least one morning a week.
Some cereal prices aren't bad on Amazon — perhaps a good candidate for Subscribe & Save?
Any other tips for economizing on breakfast cereal?