>"I have found that BPL/UL communities have really influenced my car camping trips as well as my backpacking."
Rob: It has also influenced my business travel trips. I just need to survive the twin-prop in Kenai and loading the jet in Anchorage. I don't need warm clothes at my destination, typically. So a wind shirt and a puffy let me handle that coming and going but pack down to nothing afterwards. Wash & wear undies and socks cut down on laundry and hotel sinks and a hotel hair dryer are resources BPers don't have (a bit of Tide detergent helps). Micro toothbrush, etc. Really nice for when I'm stuck in the Anchorage airport from 1 am to the first flight home at 5 am (about 10 times a year) is to bring my UL inflatable sleeping pad. Lots of people are sleeping in the airport each night, but I'm the most comfortable. And at 10 ounces and a liter of volume, it's easy to bring along. All of this combines into not just a carry-on but simply a book bag. So I walk fast and comfortably through the terminal. (I've had 16 flights in the last 10 days).
I plan to, someday soon, take a overnight business trip with NO luggage. My iPhone, a travel toothbrush and a clean pair of underwear (or just use hotel soap at night) in my pockets. No book bag, briefcase, no nothing.
>"Bringing a little bit of precut and dried kindling instead of an axe"
I like doing that, also. Shipping pallets are often decked in oak and they are all VERY well seasoned when they get tossed. I snag one now and then, chop the slats to about 6" on my electric saw in my shop and then table saw or split some of it with an axe (at home! at waist level! with a huge, great chopping block!). For a lightweight trip, I'll load it into a gallon ziplock. For a car camping trip, I'll fill a 12-bottle cardboard beer box (the box burns too). I toss in a few squares of wax paper, too.