I have a strict no-unsafe policy. My projects don't need anything unsafe provides, so needing it means my structure is bad. Any unsafe blocks should only be in external crates and fully tested.

I'm also a big fan of getting function signatures right, even if they don't behave properly. For example, if I know a function could error, I'll go ahead and have it return a result even if every error path uses .expect(). That way my refactors are limited to just those functions, and probably not the functions that call it.

I'm a fan of writing relatively dirty code, as long as the dirty parts are obvious (e.g. have a comment explaining why certain shortcuts were made). But as much as possible, make the function signatures correct so refactors are easier.