I get it, but I don't really get it.

You know how people tie a string around their finger to remember things? How do they do it? Don't they need their finger to help tie it to itself? What if they don't remember what they were supposed to remember. I mean, a string tied around a finger doesn't really help you what to remember, it just reminds you to remember something. Plus, how long do you keep it there? Won't it cut off circulation to your finger if left on there too long? How bad is your memory that you can't remember something for like an hour?

I'm glad that people don't do that anymore.