What's this worth to you? (photo via ToughSledding)

Denny's Free Grand Slam Breakfast
6 a.m.-2 p.m. at Denny's nationwide
It's simple: Go to Denny's. Wait in a long, snowy line. Get a free Grand Slam breakfast, which includes two eggs, two pancakes and either two sausage links or two pieces of bacon. Repeat. The area restaurants closest to the city are in Oak Park (711 N. Harlem), Norridge (4609 N. Harlem) and Oak Lawn (9217 S. Cicero). See 'em all mapped here.

Opera Underground’s “Opera with a Twist”
6:30-9:30 p.m. at Faith & Whiskey; $30 in advance, $40 at the door
Who says opera and debauchery don't mix? This event, which helps support Chicago Opera Theater's Opera For All program in Chicago Public Schools, combines the two with a night of open bar, appetizers and a short performance from some of its Young Artists.

Love Fest
7-10 p.m. at Holiday Club; $20 in advance, $25 at the door
As with the other Nerds at Heart events, this fest at the Holiday Club allows you to show off your prowess at trivia quizzes and board games. You'll get the chance to win some especially nerdy prizes and, if you're lucky, you might find a date for Valentine's Day! Tonight's gay-centric gathering (tomorrow is hetero night) features dating-themed mini-performances from local singer Amy Armstrong and Ms. Bertha Mason (actor/chef Michael Bowen) of "Baking with Bertha." Admission price includes one cocktail.