How To Beat The Movie Concession Stand
Step 1: on a cold winter day, wear an oversized down parka
Step 2: stuff two cans of diet coke into each pocket of the coat
Step 3: open and drink one can during movie number one (Notes On A Scandal)
Step 4: in between movies, leave the theater, cross street, buy a candy bar, and eat bar before reentering theater
Step 5: open and drink second can during movie number two (Babel)
Total cost: $1.35 $1.65
Marginal cost: $0.75 for candy bar