I'm a bit of a beer snob and I don't approve of twist-off bottle caps. It's kind of like screw-off caps for wine, it cheapens the experience of what's gone into the brew and what you're going to enjoy. So sometimes I do find myself with a nice cold beer, but no bottle opener to be had. We all know there's a good way to do something and a bad way to do something.
Opening a bottle with your teeth is a bad way, I shouldn't need to tell anyone why.
I just saw a video on youtube that used another bottle of beer to open your bottle, that's a similar technique to what we're going to demostrate. So what if you like to drink alone and you need to open your last beer?
Putting the edge of the bottle cap against something and hitting it hard with your hand is also a bad way, especially if you've already been drinking. This will often damage whatever you put it up against and you can break the glass, then you're screwed. Do you risk drinking some pieces of glass? Probably, but there must be an easier way.
So the word of the day is leverage. Have a look at the photos for examples of how to open a bottle of beer with just about anything. Safely, the right way. Enjoy and if you drink, don't drive.
Step 1: Mr. Clean can help.
The 6th image below is a kite pump, just in case you were wondering.