I don't have enough shelf space for each glass to sit separately.
I must stack them to fit. The problem is worse for some sets of drinking glasses than others. It might be because of their shape, texture, or weight. I don't know. I like them and want to keep and use them.
When I do this, nested glasses are sometimes hard to pull apart.
Instead of finding good ways to get them apart, I'd like to prevent them sticking together.
I've tried stacking them on the shelf with the open ends both up and with the open ends down.
I get the same result.
What do you do to prevent this common problem?