Nothing will teach you gratitude faster than going without

I hate my local supermarket

Or you go to Cap'n'Cave and enter into a pre-historic era of cavemen fighting each other for the last strip of butchered deer meat. It starts as you walk in the door where there is never a basket to be seen. You must decide between a trolley that could potentially be an embarrassing overkill, or desperately clutching everything to your chest praying that it holds out till you get to the tills.