As to me, this one could be used and applied further in UI: you can hide icons labels for experienced users (those, who use those buttons a lot).
It will let you apply icons labels temporary, for newcomers, and then eliminate them for veterans — to keep UI clear and nice for both types of users.

Thanks!

I write about practical and effective techniques that help me and my colleagues in everyday software development and testing.

I write about practical and effective techniques that help me and my colleagues in everyday software development and testing.