After all these years, I can’t believe Stickies is still available on the Mac. I remember coming across an article in the past about “persistent”, system-wide stickies where you could put a “note” on, say, a PDF document on your iPad, and that “note” would stick with the PDF, whether you opened it on your iPhone or on the Mac. This is how I use real stickies and I wish Stickies could do that sticky sort of thing.