I have a pile out back next to my compost bins. In the spring, I spread what I can on the garden and through the summer, i add ash to the compost bins as they fill up.
You can also get rid of quite a bit by scattering it on the lawn, though you might want to screen out the big chunks.
Soil in my area doesn't really need pH adjustment, since it's slightly basic anyway, but the ash still helps loosen up my clay and adds potassium and phosphorus and probably some other good stuff.