No need to cheat with these HTML5 Cheat Sheets (Tags, Event Handler Attributes)

InMotion Hosting - HTML Cheat sheets

These might be dated (The Browser Support Sheet, not shown, lists Chrome 9, IE 8... :/ ) but the other sheets still looked okay and a possible good starting point at least if you're just starting the HTML5 journey...
(Via Dr. Doris Chen's Blog - HTML5 Cheat Sheets -> Adventures of a Technical Evangelist in Southern California - HTML5 made easy with HTML5 Cheat Sheets for tags, event handler attributes, and browser support