Vinegar is a good weed killer but if used too much it changes the pH of the soil and will also kill the plants that you are trying to grow. As with anything, use in moderation.

Gardening cloth put down will help to control weed growth UNDER it. But, if you put down an organic mulch on top of it as a top dressing, weeds will grow in the mulch. As a landscaper, the only time we recommend a weed barrier cloth is when we use rock type top dressing as it tends to disappear into the soil due to its weight. Otherwise, we recommend pulling the weeds in the beds or using an environmentally friendly type of weed control program.

There are a couple of worm farm vendors in our area. Due to our heavy clay soil, it takes a while to get them established, but they do work.