Technology waits for no one. But that's a good thing if you need to find this year's must-have gadget for the man (or men) on your shopping list. See what we chose as our top picks.
You know the calculation: number of miles on your trip odometer divided by your tank capacity. Mileage monitors claim to one-up such simple estimates with real-time feedback. Are such monitors really accurate, and does it even matter if they are?