When you think about it, it seems absurd that there’s no way to add the currently highlighted text on your Mac to your notes. The Notes app, which is the spiritual successor to Stickies, with the advantage of a) not clogging up your screen with yellow squares and b) syncing with your iPhone and iPad, is pretty great. But it lacks, inexplicably, a way to quickly clip the selected text.
This little System Service, which runs an Applescript, will fix that for you.