Popsugar Love Valentine's Day Karl the Fog on Valentine's Day 5 Reasons Fog Is the Most Romantic Weather of Them All February 13, 2014 by Tara Block View On One Page Photo 4 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 4. Chocolate is a well-known aphrodisiac, and cold weather just begs for hot chocolate. Impress your date by adding marshmallows and calling it a "Fog Float." Previous Next Start Slideshow Valentine's DayRelationshipsHumor