I don't know about daily notes, anything that's daily kind of loses its impact. But leaving surprise love notes for my wife, spontaneously, a few times a year is wonderful and something I highly recommend. Get some post-its and a sharpie, hide them someplace unexpected.
disagree, when it comes to a relationship some things turn into rituals that are helpful. what the author is doing is more reflection than just paying attention to their partner. daily reflection is very healthy, whether you do it for yourself or you share it doesn't matter. but it doesn't lose its impact.
