Worms can help create an excellent soil amendment for your garden with very little work. If you build a worm bin for them to live in, worms can break down kitchen waste into nutrient-rich worm castings. Using these worm castings in your garden helps to create rich, friable soil that your plants can thrive in.
Drill holes in all three of your plastic storage bins. For the bottom bin, drill holes with the 1/4 inch bit only in the bottom third of the container along the sides. Drill holes a few inches apart all over the bottoms of the two other bins.
Place the bottom bin on the ground and stack a second bin on top of it. Shred the newspaper into tiny scraps, moisten it, and wring the water out. You want the newspaper to be damp, but not soaking wet.
Place the damp newspaper in the bottom of the second bin. Spread it evenly over the surface. Mix handfuls of soil into the newspaper. This will aid the worms' digestion.
Bury kitchen scraps into the newspaper/soil mixture. Add the worms. Do not use regular earthworms, as they do not do well in an enclosed environment. Redworms are sometimes sold as "wrigglers."
Cover the entire mixture with a damp piece of cardboard. This will protect the worms from direct light, which they hate. It will also protect your bin from pests, such as fruit flies. Add more soil, newspaper, leaf or grass clippings, or other bedding materials, as needed. Occasionally water the bin so that it is slightly moist, but never soggy.
Reserve the third bin for when your original worm bin fills up with worm castings. As the worms eat their way through your kitchen scraps, they create worm castings. You will notice that they will multiply and eat about half their weight in kitchen waste each day.