One thing at the time is never really just one thing in real life, specially if you have a family. But lets say a few important things, and doing it for a limit

One thing at the time is never really just one thing in real life, specially if you have a family. But lets say a few important things, and doing it for a limited period of time (weeks, months, a few years), then I can accept this as a solid advice. Otherwise, IMHO life is just to damn short to waste it all on a single goal, even if you make it in the end. As they say traveling is not about destination, but what you choose to do along the way...