0. Don’t sweat the small stuff. (Or: Know what not to standardize.)
Say only what needs saying: Don’t enforce personal tastes or obsolete practices.
1. Compile cleanly at high warning levels.
Take warnings to heart: Use your compiler’s highest warning level. Require clean (warning-free) builds. Understand all warnings. Eliminate warnings by changing your code, not by reducing the warning level.
2. Use an automated build system.
Push the (singular) button: Use a fully automatic (“one-action”) build system that builds the whole project without user intervention.
3. Use a version control system.
The palest of ink is better than the best memory (Chinese proverb): Use a version control system ...