I didn't do anything to my Jeep today, but because of doing stuff to my Jeep in the past, I did something today. I did almost all of the 30k maintenance on my Subaru today. From gaining experience and confidence with working on the Jeep, I replaced the rear diff fluid, manual transmission fluid, brake fluid, and cooling fluid on the Subaru as well as replacing the reverse light switch. Hell yeah, getting my hands dirty in the garage!