Thanks to @Farnsworth for this one! I think it's very relevant to a lot of us - here is the topic in Farnsy's own words: Itches that you just can't help but scratch. Those annoyances or things that could wait but you have to do right away for whatever reason. Like, as an example - if there is part of a price tag left on something, or remnants of a sticker, I have to pick at it until it's all gone. If I mistype something and I notice it (there are plenty of times I don't), I have to go back and fix it - I can't just say, "Eh, they know what I meant." What are yours?