How do I turn a old 5 foot upright freezer into something useful?

Store seldom used pots and pans, crock pot, bake sheets. Items that take up a lot of valuable real estate in the kitchen. Being airtight it would make a perfect pantry for dry goods.

Use as a pantry to store items such as rice, beans, etc. If it has shelves all the better!

Here are some really good ideas on how to repurpose it.

https://www.littlepieceofme.com/diycrafts/how-to-recycle-old-refrigerator/

I also saw where someone made it into a meat smoker, too.

https://www.facebook.com/photo.php?fbid=737522259713812&set=pcb.1678652625714381&type=3&theater

if you want it out of the house, remove the door and motor, put it outside with the opening facing the sky. fill with dirt and plant flowers or veggies. can paint the exterior if you like. or make a worm bed for fishing or to help the soil. fill with water and insert solar water pump and put fish or water plants in. keep away from small children much like you would a pool.

You can make a patio cooler like this one, just on a larger scale.

https://uniquecreationsbyanita.com/how-to-make-a-patio-cooler/

I use mine to store wools to protect them from moth or other bugs. Better than mothballs. No chemical odors

There are some cool ideas here: https://www.pinterest.com/nickysnider/old-freezers-ideas/