Travel Pro Tip: Use Your Smartphone as a Memory Jogger
Here's an oldie but goodie: Snap a picture in the airport garage so you remember where you parked.
I am constantly using my iPhone camera to take photos of useful information that I need only temporarily. Exploring an unfamiliar city? Snap a few landmarks and street signs as you wander and you'll easily be able to find your way back to your hotel. Try it!