Drink an Irish Coffee at Buena Vista Cafe
Yeah, it's a tourist trap — but an Irish Coffee in the bar where it was introduced to the U.S. in 1952 is one of those S.F. pilgrimages you need to make at least once. It helps that the drink is good: Warming and soothing, rich and sweet, it'll make you feel all toasty inside. Buena Vista Cafe, 2765 Hyde, 474-5044.
Chill Out in the Conservatory of Flowers
Head to the lush Lowland Tropics room of this Golden Gate Park greenhouse for a steamy jungle experience. While you're there, say hello to the 100-year-old giant imperial philodendron that conservatory workers have nicknamed "Phil." 100 John F Kennedy Drive, 831-2090. ConservatoryOfFlowers.org.
Make New Friends at a Cuddle Party
Let the body heat of pajama-clad strangers warm you up at one of these non-sexual parties designed to encourage snuggling in all forms. CuddleParty.com.
Take the Plunge at Kabuki Spa
A steam room, dry sauna, hot pool, and more warming spots await at this peaceful Japantown spa. Co-ed days are on Tuesdays (swimsuits required), or there are male- and female-only days throughout the week. Heat things up even more with a hot oil Ayurvedic treatment in the spa. 1750 Geary, 922-6000. KabukiSprings.com.
Sit Fireside at the Riptide
This bar a block from the beach feels like it's at the end of the world when the fog rolls in, but the fireplace and homey vibe make it seem like the warm center of something. 3639 Taraval. RiptideSF.com.
Layer Up at Uniqlo
Sure, it's a chain, but we love this Japanese outfitter's super-thin puffy vests and jackets as much for their bright colors as their affordable prices. And the Union Square shop is the only outpost on the West Coast, which makes it seem a little more legit. 111 Powell, (877) 486-4756. Uniqlo.com.
Eat Something Fiery at Spices!
If you couldn't tell from its name, Spices! has a penchant for hyperbole. The local chain of Taiwanese-Sichuan restaurants specializes in STiNKY! tofu, fried fish fillet with explosive chili powder, and "gangsta casserole" hot pot. 294 Eighth, 752-8884 or 291 Sixth, 752-8888. SpicesRestaurantOnline.com.
Hot-Tubbin' on Van Ness
So what if the Yelp reviews mostly admit that patrons use these private hot tubs and saunas for sexytimes? If you can find it in you to overcome the gross-out factor, then an hourlong room rental might be your ticket to getting all hot and bothered. 2200 Van Ness, 441-8827. TheHotTubs.com.