The perils of leaving a simple office note should not be underplayed. Poor grammar, misspellings or an offensive tone can create ample opportunities for office jokes or feuds. To bypass these potential dangers, try the Digital Video Memo. This little guy allows you to record a 30-second video message. Plus, because it only has three buttons (power, record and play), you can toss aside the need for an instruction manual. Approximately $49. iwantoneofthose.com.