How to hide important datas behind pictures??

So you are just another user who has too many accounts and mostly you like to save your username and passwords in some text file.Here's the thing you can hide the text file in some random image. This Concept is called as STEGANOGRAPHY.   
Go To: RUN->type cmd-> type: "copy /b my.jpg+new.txt secret.jpg" --without quotes -->enter.
A new secret.jpg will be created.To view your .txt file just open this image in notepad.