We all know flax is good for us right? It's also one of those things you can add to almost anything, muffins, cookies, bread, smoothies, meatballs, without changing the flavor of what your making but much at all. It's also not super cheap. Especially if you want to buy organic. Flax is also not nearly as effective whole as it is milled, and milled is even more expensive than whole.
Enter the coffee grinder. I buy all my flax seed whole and grind up as I need it. We bought a huge 22kg bag from a local farmer last month and I split it in half with 2 friends. (they each took 1/4, I took 1/2 the bag). Needless to say I have a LOT of flax seed right now. I'm adding it to everything and at the price we paid for such a big bag was really good.
You can also buy flax seed in bulk at most organic stores, even Superstore I believe.
I already had an old coffee grinder that didn't work that great so that's what I used. I simply gave it a good clean and now I use it solely for flax. You can get cheap grinders for as little as $15. If you want to use an old coffee grinder like I do, just grind a handful of white rice, it supposedly cleans it up really well.