An e-mail:

K-Lo,
I recently moved into a new apartment, and at some point made an off-hand remark to my fiancée that I would eventually need to provide some company for the bridal magazines she left on my coffee table. I soon forgot all about this comment, but she didn’t — and, upon returning home from work yesterday, I found the first installment of a surprise subscription to NRODT waiting in the mailbox. It is clear, I think, that this ranks among the most significant signs that a marriage will thrive.
Of course, one could note something about the difference between men and women regarding the tendency to forget or remember off-hand comments, but that would simply undermine my point. So I’ll blissfully ignore it.

ME: So…here’s your pre-engagement gift….