Buy a week's worth of groceries where nothing is something you've ever eaten before

Complete a video game from start to finish that you've never played before

Attempt to drink an entire gallon of milk in one sitting. Barfing is allowed.

Invite a complete stranger off the street to have lunch with you - you pay.

Attend a meditation or mindfulness retreat of at least 2 days

Complete 12 hours of meditation* in a single day without leaving your room** *Breaks allowed for bodily functions. **Your room could be replaced with any single location, eg a picnic blanket in a park or wilderness, a meditation retreat, etc.

Open and eat Swedish fermented herring (surströmming). Outdoors strongly recommended.