The handiness skill affects how well you are able to repair and upgrade objects.

How to learn Handiness

• Repair or upgrade objects
• Read the handiness skill books.

Challenges

• Electrician - After repairing 10 electrical objects, you are immune to electrocution from electronic objects. (Your Sim might still be able to get electrocuted in other ways.)
• Plumber - After repairing 10 plumbing objects, any plumbing objects that you repair after that will never break again.
• Tinkerer - Perform ten unique upgrades on household objects. Unbreakable only counts once, so any subsequent Unbreakable upgrades that you perform won't contribute to this total.