Dave's comment re spare batteries is a point well made, even if you're not walking down the beach. I had the batteries go out in one of my Nikons in Mendocino, California. Not exactly the ends of the earth, to be sure. But, for the odd ball battery that that old Nikon needed, rather than the usual $10-12 for the battery, the local photoshop extracted my wallet to the tune of $24! Ouch!!! Moral of the story, always make sure you have that spare battery or batteries with you!

Gary