Chicco NextFit Convertible Car Seat. Pros: Packed with safety features, led by a removable infant insert designed for smaller/younger babies. Cons: The cup holder doesn't fit a lot of sizes, but this is a minor inconvenience.
Thomas Edison Lightbulb. Let there be Light! Historians agree that Thomas Edison was not the inventor of the electric light bulb, but he did produce the first commercially viable one.
Thomas Edison invented the incandescent light bulb in 1879, patenting it the following year. Before getting the right design for a long-burning, pleasant light for indoor use, he experimented with more than 1,600 different bulbs.