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Sagacious Extravagance: On this website, I want to share ways to heighten your experiences of behaving, and specifically shopping, extravagantly; to develop better instincts for when to splash and when to dash. Sometimes I will use… read more

Sia von Donia: I am Sia von Donia. I am a neuroscientist by training and, in my leisure time, I love to shop. Although not by design, I have found that the more I understand the brain, the more often I feel lasting satisfaction with my choices, and my shopping encounters in general.…read more

The Checklist (a.k.a the von Donia aphorisms): Sia’s 21-point checklist serves as a useful framework, nothing more and nothing less, for managing what has (or surely will) become a diverse collection of neuroscience-inspired tips and musings…. read more

Privacy: We are von Donia; our website address is: We are registered as a business in Victoria, Australia with ABN 84 754 203 536. von Donia is acutely aware of the importance of your privacy and the necessity of effective safeguards to protect your privacy.…read more

Terms and Conditions: The general terms and conditions of sale (“terms and conditions”) that will apply to purchases of our leather goods and other products (“product” or “products”) made on We may update these terms and conditions from time to time… read more