With all the chargers we need to pack these days to keep our electronic devices working, where do we find room for yet another item? Yet traveling across time zones without an alarm clock is an invitation to disaster. Fortunately, every traveler has suitcase space for this tiny Atlas traveling slide alarm clock from Tiffany & Co. (800.526.0649, www.tiffany.com). When open, the clock is 11¼2 inches high and 31¼2 inches wide. But slide its covers over its face and the clock collapses into a miniature 21¼4 inches wide. The clock comes in brown or black leather with a silver face and is available for $295.