Have a client that uses a Windows based laptop. As with any computer, regular backups should take place. Only problem is this particular client is never in any one place long enough to run a shedule.
Solution? Fully automated, incremental backup to a remote server. The software runs the backup over any internet connection he may be connected to (airport,hotel or home). It’s set and forget. No Shedules, no external hard drives to lose. No worries.