1. Selling shots
Not the ones you are thinking. Selling whisky, rum, brandy and gin shots is a rewarding venture. Just in case you wondered why every restaurant teems with young and agile women wiggling their way around with wine belts and shoving tot glasses to your face, it is for a reason. Even without diluting and insulting your drunken inability to distinguish tastes, they will make scandalous profits on a good day.