We receive my hubby's meds in a cooler with gel
Ice packs. We used to either put them in our own freezer and reuse them with our expeditions to keep our beverages chilled.
A person can only use so many. So, they would accumulate. We would get a boxful, and we would give them to people.
One day, our granddaughter was reading the package and noticed, out loud, that it was valuable as plant food. She said, "it can be used as plant food, grandma! - You're welcome!"