You've cleaned the grill, bought the meat and veggies, bought the beer and ice and the party is ready to go... Oh wait, did anyone think about an opener?
No problem, grab a sheet of paper.
Here's how you do it.
Here's the story of how Heineken himself came up with the idea of making his beer bottles in a brick shape that would not only help the environment by recycling and repurposing his glass, but could also be used for construction in areas where materials are scarce...