Being caught red-handed

Sarah Palin has been roundly mocked for using crib notes scribbled on her hand during an appearance at the National Tea Party convention. Her left palm had the words "energy", "budget cuts", "tax" and "lift Americans' spirits", while the word "budget" had been crossed out. Critics have said that Palin's sneaky aide-mémoire undermined her attack on President Obama as "a charismatic guy with a teleprompter", but perhaps her more lo-fi technique is perfectly in keeping with her homely appeal? Do you use your skin as a notepad? Generations of schoolchildren have been warned off cheating in exams in this way, but is it a no-no in adult life too? Can you remember the last thing you scribbled on your hand?