I read. Alot. When I'm going to do something simple, even if I've done it before I google a bit on "how to do x" and see if there are better ways to do it. And I follow the rabbit hole a bit to see where it goes.

Example, I just learned about the unix command mktemp. I wasn't googling about making temporary files, but it was part of a solution to a different problem. Ive discussed how to make temporary files with colleagues before, and this builtin unix command has never come up. So many minutes wasted coming up with random filenames.