Okay - so this will sound redundant. Like you'll be hearing it on your favorite national morning news show at more than one point this summer but please - PLEASE take care of your skin.
I can spot a summer tourist without fail. Not only are they driving 20 mph below the posted speed limit but they are usually a fantastically bright lobster color. It is very rare and unusual to come across a local that is crispy burnt from the sun. Just because you are on vacation and you still remembered to spray down your kids, don't ruin your week by being in pain and paraniod about skin cancer until Christmas.
We spend so much time in the sun here the pain is just not worth it. I can't imagine sitting in the car for however many hours it will take you to get home wishing your clothes would quit touching you!
Some of our favorite non-sunscreen products are...
Really Big Umbrellas (this is ours)
Solumbra products (fishing gear with spf - also some great running gear)
Really Big Hats (remember your "honeymoon hat")
Polarized Sunglasses (yes - you can burn up your peepers too)