Dennison asked excellent questions in response to How to Do Usability Testing Cheap and Fast:
Tell me if I follow correctly: Do you do the test only on users that have their own PC with them? So if you happen to be in a store where nobody has a machine or is willing to take the test, then, tough luck?
Why worry about having the users test in their own environment (PC)? The focus of the test is on usability. Testing to see if the site works properly across different systems should be part of QA work and can be done separately.
Bill Moore from RadioTime responded:
In reading about a letter opener that looks like a whale, my first thought was who needs a letter opener when a finger works fine? OK, sometimes it fights to dig in the little space in the corner. Sometimes it walks away with a shiny new paper cut. (How does something tiny hurt a lot?) … Read more Simplicity