“Yes, I work out and take care of myself, but I also like a cold beer once in a while.”Jessica Simpson said After bringing all that luck to the Dallas Cowboys, Jessica Simpson is trying her hand at selling beer. Jessica Simpson has signed on as spokeswoman for Stampede Light Plus, made by Dallas’ Stampede Brewing Co. Jessica Simpson is infamous in the Dallas area for her famous curse on boyfriend Tony Romo-though it seems that the Dallas Cowboys make their own bad luck to me. So I have to wonder how successful a beer promoted by Jessica Simpson will…