Ghostnote Adds Contextual Notes to Any Program in OS X
Mac: Stickers are a common way to take notes, and Ghostnote takes that idea to the next level. Ghostnote lets you attach notes directly to apps, folders, files, and websites.
Ghostnote is more of a short-term note than a long-term one, so it’s best to think of it as a sticky note rather than something like Simplenote . Basically, when you attach a note to something, Ghostnote remembers the context so you can quickly return to it. So, if you’re working on a website, you can attach a note to it reminding you to work on something specific. Or, if you are working on a project in a folder, you can do the same. It is surprisingly useful once you master it. What’s more, you can check the trial version to see if it works for you before ditching $ 9.99 for the full version.
Ghostnote ($ 9.99)