Designs for..?

We are in the forefront of new product design, software design or concept design.. Cool no? Yeah very, but it also means we've got a reputation to keep and more importantly an obligation towards our end-users to make them nice, user-friendly products, interfaces, systems whatever...In the heat of the moment we sometimes tend to forget we've got those guys, called...eh?..eh: Customers!... and you'll get products like this, this, this, this or this one....A simple tip before you start; would YOU buy or use it? If not, don't bother us with it.