Getting a tax id is easy... you just go to the comptroller's office which is downtown around 9th and Trinity and fill out some paperwork... You might be able to do the same at the County Clerks office which is on Airport between hwy290 and 53rd St... you might want to call them first before making the trip. It always seems like there are lots of little bazaars going on in this town... one of the first ones that I did was the South Austin Bazaar Bazaar, you can call Amelia's Retro Vogue for information or at least that used to be the connection...Lots of stores are willing to sell stuff on consignment/commission and the going rate seems to be 50/50, though it should be more like 60/40...by selling stuff yourself at bazaars and such you can make more be cause you're not paying anyone else to sell it for you, although you have to pay for the booth and take the time out of your schedule to sit around for a day or two...hope this helps!