How to Implement a One Question Survey

I browse through the Etsy forums on a regular basis because there’s always helpful souls generous enough to share business tips and their knowledge.  Someone posted a link to this post from Handmade Spark:

Ever Wonder How Customers Find Your Etsy Shop? Here Is An Easy Answer

This was written in mind to create a survey for how a buyer found their Etsy shops, but I think it’s useful for other things that you may require a survey if you accept payments by Paypal.