I maintain both - a hard copy logbook (btw I'm looking for a good civilian type of logbook beyond the basic student one I started with - any suggestions?) and the a few Excel spreadsheets that I keep up to date with different totals of different times (or pulling out those numbers required in an interview) plus an Excel spreadsheet that mirrors my current civilian logbook - kept up to date and backed up in various places. I also want to maintain a hard copy for posterity.

USMCFLYR