Hellmann's and Ogilvy Brazil previously surprised customers at the grocery checkout line with an innovative campaign that treated shoppers to recipes using their purchases--printed on their receipts. The pair team up again on another cool effort, Recitweet, which provides instant meal ideas for people who don't know what to do with the contents of their fridges. By tweeting their ingredients with the hashtag #preparaprami (prepare for me in Portuguese), Hellmann's will tweet back at them a recipe using those foods.