Never forget that you are practicing a craft with certain principles.
People read with their ears, whether they know it or not.
Eloquence invites us to bring some part of ourselves to the transaction.
Editors are licensed to be curious.
Many of us were taught that no sentence should begin with "but." If that's what you learned, unlearn it - there's no stronger word at the start. It announces a total contrast with what has gone before, and the reader is thereby primed for the change.
Writing improves in direct ratio to the things we can keep out of it that shouldn't be there.