I had a traffic ticket that I hadn't paid because of a very busy schedule, and when I got to the court house at 4:40 to pay it (closes at 5pm, and this was the deadline date that it must be paid), they told me I had to go to the court house in the next city over (it was a highway/freeway ticket). They did not have a map to the courthouse, so I used my iPhone's GPS maps to get me there, and I got there two minutes before they closed!
At a business meeting once, I hadn't printed out a document that I needed to read, but I had emailed it to myself, so I clicked on the email, and on the document, and I had it right there. I read the document to everyone. Excellent!
Another time, I was late for a meeting, and there had been an accident on the freeway and the freeway was practically stopped, so I used the GPS Maps to cut through an unfamiliar city to get past the accident. The funniest thing was that hundreds of other people were doing the same thing, and we all went down this one residential street, and people are standing in their driveways looking at us, and their residential street had the traffic of a freeway on it. Lol.
Once, while out in the field, I needed to lookup some technical terms and physics equations, and I used the
Wikipanion App (Free), which worked great! Otherwise, I would have had to go back to my office and look up the equations on my computer or in a reference book.