Books-a-Million often keeps a wicker basket in the floor in front of their coffee stand with free leftover grounds. My blueberry bushes are sooooo thankful for them!
You can also compost and/or work them into your garden.
We have a large trash can where all produce scraps, grounds, tea bags, and some paper goes.
(This was our solution to rats and 2 beagles named Hal and Missy.)
(No, don't bother getting up you two- I was just introducing you - but just stay there in the shade if you like.)
When its time to turn over an area in the garden, we spread the contents of the can.
For 2 to 3 days, it smells but then it breaks down very rapidly and makes for a happier garden!
We just did that with the above corn patch.
The kids had planted it for me ...and done a not-so-good job :-)
Some rows only had 3 stalks come up, so we turned it over and worked in a whole can full of
compost and scraps. Within 3 days the smell was gone and the dirt looked quite a bit richer. And now corn is growing much better in it! Along with sunflowers....