People like us (or other people who are into quantified self)
already track their travel.
Once you see what we do with that data you might also jump on the bandwagon, install a few nice apps and start tracking your flights and roadtrips. However, these apps, while good at tracking or data input, often are not as good at visualisation.
Even if you use apps that are perfect at visualisation of data - new approach of visualising the same thing is always fun to look at and might result in videos like this:
Here is where we come handy.