My workplace deals with a ton of confidential paperwork that has to be shredded, so it ends up with a bin bag or two every week. I've been wondering about asking to take some for my allotment. However, I don't want to take it just to compost it - I live in a flat so couldn't at home, and I've filled up my composting zone at the allotment already with weeds. What I was thinking is that I could just dig it straight into the clay soil (which apparently floods sometimes) to help with drainage , as an alternative to sand. Is this a crazy idea?