If you're still around, Thought I'd try to help Brian to bring this site back to life. Brian is an aussie with a lot more savvy than I, but he can't be everywhere at once (not meaning to limit you, Brian) I'm glad there's someone in California other than actors, polititians and progressives. As far as mulching goes, If you are close to any kind of mill, Lumber, paper, sugar, basket, etc., Most any natural porous medium will do for mulch. Of course, some things break down faster than others. Grass is excelent, but ,if you are getting it from someone else's lawn, make sure they're not treating the lawn with anything detremental to life. And, of course, the more worm-food value, the better, which is why sugar cane pulp was reccomended. Let us know how things are progressing, No post is too small (unless you're building a fence) lol
PS..What size garden are we looking at, and what are you growing?