Your cell phone camera is not just for making sure you get proof of celebrity sightings; you can exploit this feature of your cell phone for simple, everyday things, like using it to capture appointment cards.

Today's tip is simple but lifesaving: When you park in a large parking structure, like at the airport, take a photo of the lot's place marker (like where it says "A2", for example).

If there isn't anything like that to mark your spot, then take a pic of any nearby landmarks. Never feel like the idiot who lost her car again!