One man's leftovers are another man's meal, thanks to one smartphone app. Leftover Swap, launched in August, lets users barter or give away leftovers, according to NPR, which first reported on the app ...

Paolo Zegarelli, owner of Paolo’s of Boca, was looking at a typical end-of-day surplus — assorted slices of pizza left unsold, which under normal circumstances would be tossed in the bin or taken home ...