If you make it all the way to San Francisco like I did and can't take the extra trip to Napa (huge sigh...), there are plenty of wine bars in the city to explore. Cellar Door is located in the Fillmore/Cow Hollow neighborhood and surrounded by great restaurants and shopping.
Constructed out of reclaimed materials, Cellar Door is a great spot for a date or a night out with your friends. Light appetizers and a three page wine list made this the perfect spot to end our girl's night out in San Fran. If you're looking for a heavier meal try The Brixton just around the corner (just don't mention it's your Birthday - they'll charge you for the "free" cake they bring out) or take a short walk to Tacolicious and try the Marina Girl Salad.