I wish I could take credit for this one, but it actually come from a friend of mine. I thought it might be of some use to you day gamers out there.

Simple story. A friend of mine is at a cafe with friends, and the cute girl behind the counter is giving him some IOIs. So, after flirting with her a little, he goes up to the bar and asks to borrow a pen and paper. She gives it to him. He writes down his name and phone number and hands the paper back to her, saying "Here. I'd really like it if you gave me a call." with a big stupid grin on his face. Well, she loved it and got in touch with him later that same day. They went out the next day and he f-closed.

While I know giving a girl your number is not the preferred method, sometimes it's the simplest choice, and if you do it with enough style and confidence... sometimes it does work. It's certainly worth a shot when there's not a lot of other options.