If you're out tailgating this weekend and forget to bring your bottle opener, you're in luck: you can easily open your beer bottle with the window of your car.
You can open a beer bottle with just about anything, but this little trick is perfect for when you're out and about and need to get into your beer quickly (say, if you need to drown your sorrows because Ohio State just scored again). Just position it on the lip of the window and start rolling the window up. The top should come right off. Check out the video above to see it in action, and it should go without saying, but...don't drink and drive, folks.