does anyone know a 'post-it' like addon?

[Khatovar]

I haven't used any, but a quick search pulled up these.

http://wow.curse.com/downloads/wow-a...tes-uneed.aspx

http://www.wowinterface.com/download...7-TinyPad.html

http://www.wowinterface.com/download...umNotepad.html