Repair

“The Repair skill allows you to maintain any weapons and apparel. In addition, the higher your Repair skill, the better the starting condition of any custom-made weapons.”

This skill is surprisingly good. The better a weapon’s condition, the more damage it does, irregardless of what weapon type it is. Simply put, this skill allows you to do more damage with ALL weapons. Not only that, it keeps armor in tip top shape as well, improving its damage reduction. Another benefit of Repair is the higher your Repair skill, the more low quality weapons you can combine to make higher quality weapons. This frees up inventory space, and generally makes looting easier. Why tug around several crappy suits of Raider armor when you can carry around one good suit? Definitely a tag-worthy skill.