I too have plenty of experience in this.
Personally, I had a 3 mile commute for 15 years.
Most of that was driven with a Wrangler TJR. It's currently owned by a different person in my Jeep club and has over 100,000 miles on the original engine, transmission and entire drivetrain.
It did...
I seriously think people are over thinking this.
Increase the frequency of your oil changes, drive it longer on the weekends, and don't sweat it.
On nice days, if you have the time, take advantage of some healthy motion and walk
You gladiator will not implode, and you have a warranty.