The best thing to do with it is to compost it.
The second best thing to do is, spread it on your garden in the fall about 1 to 2 ins deep and spade it under.
Not much more than 2" or you will get beautiful plants but no produce in spring.
Life's Journey is not to arrive at the grave safely in a well preserved body,
but rather to skid in sideways, totally worn out, shouting,
"Holy crap what a ride!!"