Dropped items can be sucked into the top of a Hopper and transported into a container like a chest or furnace below or to the side, allowing you to autofill furnaces with fuel, items to cook and take the output and place it into chests below. Void hoppers also let you transport items long distances.
An API is available to add compatibility with new containers, which already supports the default chests, furnace, protected chest, wine barrel, and certain autocrafters, and has a 'lazy_container_support' setting that can automatically detect any container for use.