what is the greatest invention of all time?

He he well I love food and ya man only discovered fire didnt invent it but he did invent the art of cooking....so yup thats the greatest invention there is....nothing can beat it..

Pockets - definetely pockets!!! I swear, nothing drives me crazier than when I end up in an outfit where I don't have any pockets to stash stuff - like keys, lighters, makeup, a pen. I guess cause I was a waitress for so long and the uniforms always where an apron with at least two big old pockets I need them now. Even my purseshave pockets inside and outside of them - little spots to cubby hole small things so I can easily find them later. Yup - pockets are the best idea mankind ever had!