You can never go wrong with vinegar, can you??? It's just a household staple, good for soooo many things. Those little milk crates come in sooooo handy. I line mine with newspaper, cardboard, black ground cover, whatever I have on hand at the time. The newspaper lasts through the growing season before it breaks down, but that's fine. I used to ask my neighbors to save me their copy of the newspaper, but now everything is online, so I just use the contents of my paper shredder. There's more junk mail than I need anyway.