Use an actual grocery list on your page.
Use an actual coupon on your page.
Make a mini album about each thing that is ALWAYS in the fridge.
Use arrows to point to each item and write a quick note about it.
Make a little fridge out of paper and use as an accents.
Use some packaging from a commonly purchased item.
Write your journaling in checklist style.
Have Fun with it...that is a rule.