It's a tight window, but if you can squeeze some free time in between opening presents on Christmas morning and heading to family dinner, Black Scale is having its annual Christmas Day sale, and it's not to be missed. It's only happening in the San Francisco location, so if you're in the Bay Area, make whatever excuse you can to head to 1409 Haight Street between 11 a.m. to 3 p.m. You just got a holiday bonus and/or some checks from your relatives, right? Merry Christmas to you.