Evernote

Fuel your idea .......................................

Toss out the note pads. Forget those manila folders. Being organized has never been easier. Now, you can have everything at your fingertips in a matter of seconds no matter where you are. Snap a shot of that wine label with your camera phone. Grab product descriptions and prices from the Web. Or store your to-do list for that major project you're working on. Use this as your external brain so you can keep your head clear for decisions you need to focus on now. The easiest way to remember everything is to let someone else do it for you.
i like :)

How to use it .......................................

Slightly confused about the first sentence, please re-write.
Whenever you see something you want to remember later, use this app as your external brain. Take a photo, snag a portion of a Web page, scribble a note or record your thoughts. Then, give it to Evernote. No matter how you capture it, you can always access it later from your Mac or PC or phone. It will even recognize handwriting and type that's embedded in pictures.