Doodle Chrome extension
This extension lets you doodle anywhere on a webpage. You can draw, or create input boxes for text.
When the extension is loaded, type 'd' to enter draw mode, then you can doodle anywhere on the page.
Type 't' to enter text mode, click anywhere on the page to create a input, and you can type text.
Hit 's' to save the current doodle.
Hit 'r' to restore the doodle on the current page (careful, it will overwrite what you currently drew).