Save milk jugs and cut out the bottoms to use in the early spring garden. You can use them as mini-greenhouses to give plants an earlier start. They also provide protection from the bunnies to tender young plants until the plants are more mature. A small slit in the side makes staking them and moving the container to the side during the day easier. Remove the container, or the lid, during the day (don't cook your plants!) and replace it in the late afternoon to store warmth for the evening.