2. Alan Kay says: "if you want to be a better programmer, play more violin." The idea being that playing an instrument improves our brain
3. Write tests for ever open source project you encounter: unit tests, property tests.
4. Write specs using TLA+
[O] some people say that typing speed doesn't matter, because the slow part is thinking about the code. Those people are wrong.
[1] see the essay: "We are typists first, programmers second" https://blog.codinghorror.com/we-are-typists-first-programme...