Learn refactoring tools for IDEs for your language. I can't believe how many things developers on my team still do by hand that are totally automated with 1 but

Learn refactoring tools for IDEs for your language. I can't believe how many things developers on my team still do by hand that are totally automated with 1 button press... Renaming things, extracting code into functions, organising stuff ... Another great one: Fuzzy finders for files and even code symbols.