(for the apocalypse)

• Candle making
• Soap making
• Wood carving
• Farming
• Animal husbandry
• Violin
• Guitar
• Harmonica
• Law/Alternative Dispute Resolution

(in case modern civilization limps on)

• French
• Photography
• Kabbalah, Talmud, etc.
• World literature
• Spanish
• History
  • Indigenous history of the Americas
  • East Asian
  • Russian, Central Asian
• Fundraising/grant writing
• Bookkeeping
• Locksmithing

I realize there is some overlap here.