I just measured the cards, created a document in Word and printed it out. Then I cut out all the reasons and modge podged the reasons to the deck of cards. This was an extra deck that we had laying around the house (we have 5 or so) so it was perfect. Then I punched the holes in the cards and put the deck on the rings. Voila! Instant V'Day gift.
The font I used was my own handwriting! I found this awesome website that will create your handwriting into a font that you can install on your computer! The website is: myscriptfont.com. You can download a template and scan in your handwriting. Very cool and FREE!!