A very funny website:  Things My Girlfriend and I Have Argued About.com

Examples include:

• Our telephone number.
• The best way to hang up washing.
• Which way, (the distances were identical), to drive round a circular bypass.
• Ownership of the TV Remote.
• Disappearance of the TV Remote.
• Those little toothpaste speckles you make when you brush your teeth in front of the mirror.
• I eat two-fingered Kit-Kats like I’d eat any other chocolate bars, i.e. without feeling the need to snap them into two individual fingers first. She accused me of doing this, “deliberately to annoy her“.
• Look, if you don’t understand the rules of Robot Wars by now then I’m just not going to continue the conversation, OK?