I wish we had leaves here! The trees in our yard are mesquite and willow acacia. Not much leaf litter.I pick up bagged leaves in the fall and again in the spring when the Live Oaks lose theirs. Then there's the tree guy who brings me a couple truck loads of chipped wood per year.
Edit: I have used this for many years. I used to use LOTS of mulch and after a while I never had to till and always had a great garden. One year I was not so dilligent in the garden and the blaket got really low. Low enough that the nut grass that had been spreading for yeare,unbeknownst to me, Broke through the thin blanket like a lawn, After getting the nut garss under control I now just use enough th keep the weeds down. I still have to pull a few weeds but not many.