I don't know what we did before GPS navigation. Now we just punch in an address and go. My family even gave our system a name..."Smart Sally". We actually stole that name from another family but we like it so it stuck.
Smart Sally has led us safely through numerous states, cities and streets. Most of the time she lives up to her name and smartly directs us the most efficient and accurate path to our destination. She even frequently "recalculates" when her human follower makes a mistake or misses a turn. (Did I say, 'frequently'?!?)
However, occasionally Smart Sally is not so smart!