Along similar lines: I highly recommend making every metric and log in your system spelled out completely somewhere. Don't: base = "abc" s

Along similar lines: I highly recommend making every metric and log in your system spelled out completely somewhere. Don't: base = "abc" something = base + ".some.suffix" Do: something = "abc.some.suffix" I've also had some luck with hard-coded UUIDs at call sites, e.g.: log.Info("something", "callsite", "DECAFBAD-000...") because it makes it absolutely trivial to find a log, and unlike caller-lines (which are great! use them too!) it doesn't change when you refactor code.