When I am reviewing Japanese kanji, I often want to hold onto a few notes just for that study session.
So I added a page at http://knotepages.aule-browser.com/index.html
These pages are plain HTML. In Firefox browser, you can resize each note.
They only last for the one browser session - so these are THROW-AWAY notes ONLY.
I often use them to hold the contents of a Google translate result or the clipboard contents from a browser dictionary plugin.
Or the contents from a wiktionary page such as http://en.wiktionary.org/wiki/%E8%A1%8C#Kanji