Just had a thought for a similiar, free alternative.  I can only think of one example now.

My Mom is the volunteer for local hospital gift shop....she is the candy lady.  She orders all candy & snacks for 32 years!  Anyway, some candy arrives in large clear plastic containers which is emptied as candy on shelf is restocked.  My mom, being a good depression era child brings them home vs throwing away.  Different shapes but after a while they always get duplicates.  I have used them for dry goods, hardware, art supplies.

Any business that would get items in clear plastic stackable containers and empty them may be glad to donate them to you.

That was long.  Guess I just wanted to brag about my mom.  She is 82 yrs old, doesn't plan to "retire" from her coveted position and likes candy!

Great organization, Amber! 

FYI, when spending one's own money, IKEA sells similar systems for much less than Container Store.  (Love CS, hate their prices!)

The bulky stuff:  I went to IKEA and bought several rolling plastic bins with lids (about $7 each; in the kid's area, oddly) that I use for organizing recycling and other dry storage.  They are only about a foot tall by I guess about 16" square, so they fit very neatly in an odd nook I have in my kitchen, and roll out when I need them.  I would not use these for storing food unless the food was in unopened or securely refastened impermeable packaging; these bins are not vermin-proof.

IKEA also sells a smaller removable bucket and matching holder meant to pull out of a base cabinet that might meet your needs as well or better.

I was given a small plastic 3 drawer chest from Container Store; this I keep under the cabinet on which my cooktop sits and I use it to store potatoes, onions, bulk dried peas, lentils, pasta, and rice (the dried stuff moderates humidity to help keep the produce free of mold).

Dog food I keep in a plain old plastic storage bin (rubbermaid type) with a tight lid, also under the cooktop.  I have 3 big dogs, so mine holds a 30 lb. sack of food.  I use a smaller container of a similar type to hold bulk milk bones and other snacks for the mutts.

But the most important aspect of organizing I think you've already mastered:  keep only what you actually will use.  The more stuff you have, the more difficult and expensive it is to organize and maintain. For the clutter-rich, organization poor, Freecycling is often the requisite first step to an organized life.

Oh man, the Container Store is so cool. Real Simple plugs them every once in a while, and I always think "Wow, that would make my house so much more organized".