Since you mentioned regex, I'd add: - Vim bindings and macros - AWK …and, if you'd like to generalize that, I'd say "throwaway programming" is generally a go

Since you mentioned regex, I'd add: - Vim bindings and macros - AWK …and, if you'd like to generalize that, I'd say "throwaway programming" is generally a good skill to have. Many programmers don't get that not every problem should be solved in an elegant, robust and maintainable way. The important part is that you recognize when that isn't the case and that you are able to improvise in these situations. There are, of course, also situations when you absolutely don't want to go the quick & dirty route, and recognizing those is just as important.