My personal favorite, which is always a hit with the girls is when I show them how to open a bottle with a dollar bill. Plain and simple, no tricks involved. You can learn it too, its simple, just view this video. But for those who already saw it and thought its too tough, get this bottle opening belt. A simple but effectively superb idea to open bottles in parties when the opener gets misplaced and the manufacturer isnt kind enough to offer 'twist n open'. It costs just around 10 pounds from boysstuff and for bartenders its simply a boon.

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