This is why vodka has a twist cap.
Bang it Against a Hard Surface
This guy's accent means he knows what he's talking about. No shoes? That's another issue, but any padding like a towel or phone book will do.
Use a Knife
If you wish to be regarded as a Certifiable Bad Ass (CBA), use a knife, preferably one pilfered from pirates. Slant the blade once it's in the cork and twist back and forth, gently pulling upward.
Push It Real Good
If you don't mind a little cork with your Cab: just push the cork into the bottle with your thumb, a marker, or the handle of a screwdriver or something. Piercing a hole through the middle of the cork first will alleviate some pressure and make it go down easier.
With Screw and Hammer
Perhaps you are a man with 7,000 tools, and no corkscrew. These standard items are already on your utility belt. Read a tutorial.