Zlil Lazarovich has solved a specific problem that you may not even be aware of. Let's say that you want to eat a peanut butter and jelly sandwich on one folded slice of toasted bread. How can you do this with a piece of bread that has been toasted flat? With the Toaster & Knife! This gadget toasts bread in a V-shape.
Now, the next problem for the peanut butter and jelly sandwich perfectionist: icky cross-contamination from using one knife to apply both peanut butter and jelly to the toast. Now, with the double-headed spreader, you can keep both ingredient reservoirs clean and tidy.