Good ideas above! Also, prepare some group packages, if you do not already have them priced out. Like a 25 or 50 person party menu. Perhaps even pro actively call some businesses or foundations that you know have yearly office parties, tell them you would love to offer a catering package for them. Let them know you are a local owner/operator. for your weekend concessions stuff, perhaps get like a 3x4 foot sign made up at a Kinko's, stand it on an artist easel, stating that you do christmas office parties, BBQ is the new thanksgiving turkey, etc. The key is exposure as much as you can.
Brian: Weber: OTG + Lime Performer - - Keeping the Armor On - Eph. 6:11