Do you use old cosmetics?

Products such as eyeshadow, blush, and eyeshadow are

Maybe it's because I don't use it often

Once you buy it, it doesn't seem to run out no matter how much you use it, so you end up using it for years.

Now that I look at it, the blush is a whole year past its expiration date.

Of course, the expiration date has passed since opening.

I'm just using it all up because it feels like a waste to throw it away.

I'm curious if everyone throws away old things or just uses them without caring.