I have about 30 coozies or can insulators
That's a lot of them! What do you use them for?
I've used them to avoid alcohol getting cold.
That seems like a lot. Why do you feel like you need that many? You should be care about accumulating so many of them that you don't have space for other things.
Back in my day you didn't want your drinks getting cold so you used insulators.
Yeah they are nice to have but you don't need as many as you do have. Just having a few is plenty you need to be careful to you don't collect more than what you need.