I have a side by side refrigerator - the picture shows the refrigerator side. On the top shelf which I can't reach we put water bottles and soda. On the second shelf which I can reach with a quad reacher, we put prepared meals/sandwiches that are covered with foil (which I can remove myself). The foil gets tucked under tightly so that if my reacher wobbles the food stays mostly on the plate.
The third shelf down is saved for food prep items I might need to reach, such as meat, tuna fish, smoothie ingredients, cut up meal prep items, etc. Cut up snacks (i.e. fruit, dips) are also kept on the bottom shelf where we also put yogurt, which we peel open so I can easily get at it. The bin at the bottom holds fruits and veggies that aren't cut up yet.
On the side door we keep water bottles with the caps loosened for me, condiments in plastic squeeze bottles and other items that are heavy and difficult for me to get out with a reacher.
To work for me, this system requires that the refrigerator be arranged where items aren't 'buried' - in other words, I don't want things stacked on top of each other. That makes it hard to pull it out.
I'll explain more later about how some of these ingredients are used frequently by me - and variations on what I keep in my frig depending on the food I'm making!