Technology Is A Wonderful Thing!
Whether it's Android or Apple there's an app
or reminder for you.
Just go into reminders and click 'to do' and fill it in, but don't just set time as it won't add in destination. (btw destination works much better if you make the distance as close as possible to your regular supermarket, especially if you pass it often but are not going in)
Fill in including 'arriving at destination' and there you go, all ready not to forget your bags.
If you don't already have a reminder app in your phone, download reminders/tasks from play store and way you go.