Some have recently suggested that people should be consolidating grocery shopping, doing just one big trip per week, to cut down on petrol usage. I’ve done the opposite — I’ve started doing more trips to the supermarket, on foot. This is helped by the fact that since I’ve moved, the supermarket is only about 5 minutes walk from home. In fact with looking for parking, it would probably take as long to drive as it does to walk. So if I can restrain myself and only buy two (green) bags-worth of stuff each time, I can do it all on foot.
The checkout chicks/blokes don’t know this, of course, so sometimes they pack stuff in such a way that one bag is very light, and the other heavy. A little re-arranging is then necessary to ensure I won’t end up with one arm longer than the other.