Welcome to Brewerfan and (soon) to Wisconsin, Scott. patrickgpe is correct that Brewers clothing is much more reasonably priced at Kohl's department stores. For non-clothing Brewers items like bobbleheads, the team stores at Miller Park may be your best bet. There are two on the field (1st) level, with the LF corner store the largest. There are smaller stores on the club (3rd) and terrace (4th) levels. The team stores also have some clothing items not available elsewhere, if that is more your thing. The field, loge (2nd level) and terrace levels have guest relations booths. Their staff have a wealth of information, right down to which concession stands are open on a given day. They can also give you a "first Brewers game" certificate, or even one for each member of your family if you each want one. (You fill in the name.) What section are your seats in? Knowing that might help us give you further advice (like whether you need sunscreen or a jacket). And if you'll excuse my asking, how has a Pirates-at-Brewers contest come to be your first MLB game? There's no wrong answer to that.