I used to have an issue with throwing away jars and boxes. I keep a good selection of boxes broken down and throw the rest in the recycling bin. I throw jars away now. I still hoard the packing material. I have a giant box I throw it into. Now I seem to hoard the plastic reusable containers that some lunch meats comes in. I started to hoard those plastic prep containers that some restaurants put their to go orders in. I make myself throw them away. My hoarding seems to be geared around storage containers.