It is said the mother of invention is necessity. I've found that to be real over my Forty years approximately for being an inventor. Another way of putting it really is; find a need and grow it. And so the best time to think about an invention might be that http://rylankdup03703.free-blogz.com/19767301/invention-ideas-for-students-and-ways-to-come-up-with-great-new-products