When and How did you know...
... that you want to spend the rest of your life with your spouse? That he/she is THE ONE?

Yes, I am pre-empting the mushiness that is Valentines... and since I don't have time yet to bloghop and answer tags and what-nots, i'd leave this question here and hopefully have visitors leave answers (or... answer it in your blog and leave the url to your post in the comments section).

Or if you've already blogged about it, leave the permalink for your post :)