I really wish for a -Weverything flags that would enable all warnings, even the stupid, useless ones. I'd then put -Wno-<stupid, useless warning> to disable those.
clang has -Weverything, I prefer to start with that and do #pragma clang diagnostic push/ignored/pop as needed and only turn off the really obnoxious ones, like -W-c++98-compat-pedantic
