• Test on people around you
• usertesting.com
• Recruiting intercept such as ethn.io
• Lo-fi prototypes
• Hi-fi prototypes
• Open-ended conversation with real users
• Invite stakeholders to the user sessions
• Run a quick A/B test
• Fake door trip: Not really a feature; just observe traction
• Concierge MVP for a few customers
• Analyze existing data