Plan better? I’m useless at it personally. But my mum used to hit the supermarket once a month for about 2hrs, but about 2 fully loaded trolleys. For a family

Plan better? I’m useless at it personally. But my mum used to hit the supermarket once a month for about 2hrs, but about 2 fully loaded trolleys. For a family of 4 this pretty much lasted the month (stuff was frozen etc and maybe a quick 20 min trip once a week for fresh stuff)