Hi, i was wondering about composting (hope it's the right word) and not sure where to go, i have a area in the back yard and want to know how much of grass clippings, news paper, and scraps from the kitchen to use. Can i keep it out in the open, or should i cover it with tarp so the rain doesn't soak and make it smell. Any help would be great. How do i know when its done and readly for the garden and where else can i put it?? sorry new to this all.What can i do with all of the grass clippings i have??? thanks for any help