Already following "How to Secure a date", the lady is probably your girlfriend by now or on the way*. Now the problem is keeping her your girlfriend, this is where this 'ible comes into play. If you are a particularly bad boyfriend, following these steps will buy you a few days, a week at most. If you are a good boyfriend, then your girlfriend will brag to her friends how "sweet" you are, which is a sort of investment if things don't work out with the current girlfriend.
Paper & Pen (if you have good handwriting) or Paper & Computer & Printer
Bottle, preferably with a cork
*Results may vary
Step 1: Write on Paper
I am no pilot; yet, wert thou as far
As that vast shore wash'd with the farthest sea,
I would adventure for such merchandise.
Act II Scene II
Its a pretty good quote and it has to do with the ocean, "message in a bottle" theme. Anything is good really. Since the next step is to make the paper looked aged, I like the idea of making the font in calligraphy or some stylish cursive.
I used a printer because I can't write calligraphy. If you do want to write it, get the quote you like, put it in the font you like, put the paper over the screen, and copy.
Step 2: Stain the Paper
Follow this 'ible:
A good tip is to crumple the paper in to a ball a half dozen times, this helps the paper stain darker and a more uneven color which looks good. Be careful when burning, this still burns fast. Light and blow out the paper, repeat.