Advanced frugal innovations / products (AFIs) have appeared in a wide range of sectors including space, automotive, healthcare and even particle-physics! ^[1][2]  Although the word "frugal" usually is misconstrued for being "cheap", frugal innovations are anything but.  A bulk of these, especially advanced frugal innovations, are created by skilled researchers who also use cutting edge technology for realizing their goals^[1][3].  This is important because of the artificial constraint on the amounts of materials going into an AFI.  In particular, it is imperative to have a very good knowledge about the workings of AFIs to successfully design and develop one from scarce resources.  AFIs are NOT makeshift innovations as many would want to believe.  The interested reader should consult the references for more on these products or visit https://frugalengineering.in/. 

Frugal engineering entails use of the frugal design approach which saves more and more material at every stage of the design process^[4][5].  A schematic is given in the figure below which is taken from (https://frugalengineering.in/).  This approach is based on the factor of frugality (F), which is a modern version of the classical factor of safety (S).  The symbolic representation is F^S.  The factor of frugality based approach starts with a low safety factor (~1.5) design, which due to its low value typically uses lesser amounts of material resources for realizing the design.  A caveat being that rigorous design procedures akin to those employed in the aerospace sector have to be adhered to due to the low safety factor.  Such a low safety factor design is further researched for saving yet more material through subsequent stages of the product development process including materials, biomimetics, manufacturing and lastly salvaging for used parts.  Each of these extraneous schemes adds a numerical quantification to the low safety factor, ie, ~1.5 and the cumulative value obtained is the final factor of frugality^[4][5].  Hence a higher F value for a lower S is the best combination for F^S. 

Design and engineering through F^S would go a long way in systematically using optimal resources for making quality products at low cost.  Moreover complex networking of advanced frugal products can also significantly aid global sustainability efforts.  An instance of complex networks of adaptive frugal products being electric vehicles networked to a smart grid^[6].  Overall, scientific tools like F^S together with government mandates^[7] are needed for meticulously fighting the onslaught of planetary crises including climate change.

An interesting use of frugal innovations is in fighting poverty^[8].  Scientific tools like the frugal design approach together with awareness of frugal innovations, in general, would go a long way in tackling global poverty.  Governments around the world, UN, World Bank and other relevant entities should make this interesting concept available to society at large including the poor. An ecosystem could be created around frugal innovations that would help alleviating poverty by creating employment opportunities in making these innovations with their subsequent diffusion uplifting living standards at large including the poor^[8].  Although private sector entities are using AFIs for benefiting society, companies should fund more research and other programs related to these innovations that would overall help the rich and poor. 

AFIs use lesser resources; give quality performance; cost less; are a potent tool against our crises; and will give a fillip to inclusive growth !  Let's join the AFI bandwagon.