There are so many inventions out there that can really help people save up on how they live their lives.  For example, Homemade Fuel Cell is so very useful and not to mention practical as one of these fuel cells actually use water.  Imagine that, water can be a source for energy.

This is only just the beginning and not the end, as we can use all other ingredients and equipments that are lying there around the house.  Band aids can also be used in making a fuel cell.  This fuel cells are like battery packs that we can use to supply us with electricity among others.