I have found WYSIWYM concept (What You See Is What You Mean) and WymEditor[1] in particular a very useful solution, at least for website editing.
Previously I have used Xinha, FSCKEditor and similar, but there was always some problem with the resulting markup. WymEditor copes much better in this regard... (not affiliated, just really like the concept and WymEditor)
Previously I have used Xinha, FSCKEditor and similar, but there was always some problem with the resulting markup. WymEditor copes much better in this regard... (not affiliated, just really like the concept and WymEditor)
[1] https://github.com/wymeditor/wymeditor