Tip - Keeping Weevils Out

In warm climates like Australia, where I come from, weevils in the
pantry can really get out of hand once the eggs are laid in wheat
products, etc.  I have a tip that I discovered about a year ago and
there was not a weevil in sight last Summer.  The tip is to put all
wheat products, flours, cereals, rice, even biscuits, etc. into the
freezer for 48 hours after bringing them home from the supermarket as
this kills the eggs before they hatch.