With these bags, you can build as large an area as you can reach with a watering wand or hose nozzle. If pests become a problem, move the bags until you can reach the infested plants. The jars with their original lids also make great storage containers for grains, dried beans, herbs and sun-dried tomatoes. If you receive a lot of mail with return envelopes, use them for storing seeds. They're sealable, markable containers that also fit inside freezer bags for cold storage.
Many areas recycle newsprint and cardboard.
In areas that don't, you can reuse them by creating new beds for next spring. Lay down sections of newspaper over layers of plant material, enough to create the size of bed you want. Follow this with flattened cardboard boxes, anchoring it with rocks. Soak, then keep it damp. By spring, worms and other organisms will have reduced this mulch to a friable material that will have you dreaming about bumper harvests.