Whats your favorite addition to your rig

[Rubyredfozzy]

I have had jeeps in the past, but i have mostly used them for off-roading/day trips to the trail. I know how to load out for short trips and protect my rig from major damage while having fun but the long trips and camping are new to me

I am starting off fresh with a new vehicle and am wondering what has been your favorite addition and why.

What capability did it add to your rig, or what comfort did it add to your trip?