The note should open upon clicking on something with a note (as an option, as I can see this annoying some users), or do some sort of indication on the icon tha

The note should open upon clicking on something with a note (as an option, as I can see this annoying some users), or do some sort of indication on the icon that there is a note. I will forget to use it properly as it is, but I can see it having tremendous value otherwise.