Sunscreen applicator

Being the inheritor of my genes, I must be very careful - especially in these later years - to slather upon myself wherever the sun shines, even indirectly, a heavy dose of sunscreen lotion.  

So here you have the invention that should long ago have been invented and sold as an applicator of sunscreen for the backs of us lacking long arms and contortionist ability. 

Rosalie glued a sponge to a worn-out bath-brush handle. Hello? Why were we the first to think of something so simple? (Or were we?)