Yeah, you don’t really need to refridgerate insulin, it’s just a good idea to keep it in a cool place because heat can render it useless. But if you keep it in a cabinet (away from the stove!) it should be fine. We noticed problems when we kept it in the medicine cabinet, which was next to the microwave, so that’s why I put it in the fridge and I kept the “in use” bottle next to the cereal in the pantry. The reason it was next to the cereal was because growing up, that was the shelf I could reach.
Nowadays, I keep the in use bottle in my room, usually on my nightstand or desk and the rest in the fridge just for “safe keeping.” sometimes I will put the “in use” bottle in the fridge just to make sure I don’t misplace it.