3 bags full of brown gold.
You can put it on top of your pots/garden as mulch or to your compost.
You can enrich your soil by mixing it with soil. They improve soil texture and drainage.
Put it on your plants as fertiliser as it breaks down.
As it decomposes, It slowly releases nitrogen for your plants. Good for leafy vegetables such as spinach, tomatoes and corn. You see my tomatoes plants?
What a great way to recycle, instead of throwing the coffee grinds, some cafes have become environmentally conscious, take the effort to big the grinds and give it away for free. Don't worry about the coffee smell, after a few days, the smell will be gone.
I have done this for years, and I believe in reuse, recycle and re-education.