Here is a Web 2.0 tool which will change the way you browse the world wide web ;)
MyStickies is a nice extension to firefox (flock) which lets you store sticky notes in webpages..mess up with the webpages as you like. Moreover it allows you to create a StickyPage containing Sticky notes only :P The sticky pages are stored online in your account.
To use the extension in flock you need to use a firefox to flock extension converter [here](http://outraged-artists.com/flockd/)