CHARLOTTE, N.C.--(BUSINESS WIRE)--Nearly four in 10 (38 percent) U.S. adult consumers never disconnect from their smartphones, and only 7 percent shut down entirely on vacation, according to a new report released today by Bank of America. In examining everyday use, the majority (89 percent) of adults check their smartphones at least several times a day, and more than one-third (36 percent) report they constantly check their devices. This growing dependency is also visible in managing finances: