I am a retired biology teacher who has finally found a way to win the weed battle: Jeff Ball's 60-Minute Garden. This is the most complete raised-bed vegie garden book I've found. I've fully double dug both 5'x 50' beds and used silo plastic for the paths. I have the poly come up inside the side boards. One inch of sheep-manure enriched compost and seaweed each year, no more digging---ever.