General Feedback

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Do you have a question, request, or idea you’d like to share? While I’m not a financial adviser and can’t tell you how to invest your money, I’m always happy to discuss portfolio theory and I love to hear how people use the site. Please use the form below and I’ll get back to you as soon as I can. And don’t worry — your contact info is completely private.

Product Questions

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For any questions regarding product orders or shipping, please contact customer service. They’ll take care of you far more quickly than I can! But if you have a question about spreadsheet functionality, I’m your guy. Feel free to ask using the above form.