How much are you worth in onions? You don’t know, right? The exciting news is that supermarkets IN YOUR TOWN are getting self-service counters where you can scan an item’s bar code and then jump up and sit on the weighing scales yourself. After learning my value in onions (more than US$130!), I was planning to work through a wide range of supermarket items (just think what it does to your self-esteem to know your worth in chocolate or floor mops).