I am in the process of opening an embroidery business operating from my home. I need to purchase clothing, blankets, hats, etc to have on hand as samples. I was told by the vendors that I need a sales tax id number?? or a resale tax id number?? I might be talking about 2 different tax id numbers, I'm really not sure at this point; very confused. I visited a number of gov't websites but didn't know what kind of information I was looking for. I live in PA. Can anyone help steer me in the right direction?