App for Note in Sidebar

[casebash]

I want an app in the sidebar that contains editable text. Basically, if there's five things that I want to do today, I want to add them into the sidebar and remove them when I've done them. I tried searching in the App Store, but I couldn't find such an App. Any recommendations?

 

[Gregg2]

Not what you want, but I would use Stickies for that.