Can I live without my GPS?

We got a new toy a couple of weeks ago. I purchased a portable GPS on Ebay. I was pretty excited about it. We decided to get one for the days we are in Miami on our vacation. We spent hours two years ago trying to navigate Philadelphia and Washington D.C. much to the total aggravation of my husband and I. The GPS is so cool! I just plug in places and addresses here at home to see where it takes me. Granted, it takes me routes I probably wouldn't take, but I live here and I usually know a better way. The kids love when it talks to us. They have named the voice "Jill". After she gives us directions they always say "thank you, Jill!" That's going to get old. We will take it with us and hopefully, we can get through Miami relatively road rage free. Cross you fingers.