Well, I just got this in an email blast, first I've heard of it, wish the Sox would have marketed this a bit more, but for everyone else out there, if you're not doing anything, the Sox are hosting a Holiday Blowout Sale at US Cellular Field from 10-2 tomorrow (12/7). Looks to be pretty similar to the annual Garage Sale.
Parking available in Lot D & E. Entrance is at Gate 2.
Even if you don't want to buy anything, looks like you'll still have access to the home and visitor's clubhouses, which is neat. Doesn't appear to be an entry fee. And the Chicago Sports Depot is running a special simultaneously, first 100 fans to spend $100 (at the Depot, not the Clubhouse sale, I think) get a free autographed baseball and everyone spending $50 (again, at the Depot... I think) can get a free ornament of the Chicago team of their choice.