Which way?

I can't tell you how many times I've gotten in the car, only to get half way somewhere and not know where I'm going or how to get there. I know I have a doctor appointment or a visit with a friend at 10am, so I jump in the car, only to realize I'm not sure what the address is or the name of the place. I'm so grateful for cell phones! Hi, it's Pam... I'm on my way... what is the address again? 
To prevent this, I write down appointments, complete with name, address, and phone number. I also use Google maps to plan trips, even local ones, if I'm going somewhere I'm unfamiliar with.  
What promoted this post? I'm off to the Casual Blogger Conference and I want to get there without getting lost!