When I travel for a work or a personal photography trip, I either drive my 4Runner TRD Pro or rent an SUV so I can easily access my gear in the field. Years ago, my friend and mentor Bruce Dale suggested a cheap, easy way to keep prying eyes from cargo and luggage in the back. It’s a black flat bed sheet. I bought two of them at Walmart; one for my 4Runner and one to keep packed in my travel bag. They’ve become the black sheets of my family. (Sorry, couldn’t resist.)
If I’m going to be hiking any distance when I get to my shooting location, I try not to keep valuables in my vehicle, if possible. But I’ll still cover extra jackets, water, snacks, or empty camera bags or luggage. I find the black sheet most useful when going to and from my shooting location, the airport, meals, the hotel, and when stopping at any store or gas station. It’s cheap, simple deterrence. I even use it day-to-day when I’m at home.