This one's for the cold season...
Have you ever found yourself kissing a girl on the sidewalk in winter - cold winds blowing - snow falling... can be pretty romantic, but if you're not careful, you'll get *very* chilly fingers in no time at all. Sure, you could wear gloves, but do you really want to caress her with mittens on your hands?!
The solution is so easy that I really wonder why nobody came up with it before - pretty girls should have kissing pockets (or a kissing muff if you will) on the back of their coats/jackets. So while you embrace and kiss her, you can keep your hands nice and warm.
This is the invention of the century!
Reward: Free kissing pockets for the girls in my area