1. Start writing tests. Tests will save your ass when you're merging a feature branch. Cause are you sure everything still behaves correctly after those ingenio

1. Start writing tests. Tests will save your ass when you're merging a feature branch. Cause are you sure everything still behaves correctly after those ingenious refactorings? 2. Use an IDE and/or compiler that actually warns you about common human errors like unused variables, unreachable statements, and dumb mistakes like a case-block with silent fallthrough to the next case-block. 3. Acknowledge responsibility when writing security related code. Know that there's no room for mistakes.