I think the Swiss Army knives are well designed objects. They're convenient because they have many accommodations ranging from uncorking a romantic bottle of wine to fixing things with a screwdriver. It is also portable and the tools fold back into their slots so objects like the knife can be kept safe. The Forward-Backward Glasses (see right), however, I think are not well designed. Although the idea of having eyes in the back of your head is intriguing, the invention might be more confusing than helpful. The wearers of these glasses will see forward and backwards simultaneously, making it difficult to concentrate on one image.