We usually "gang up" when ordering stuff like that. Whenever any of us order something we will call around to the flying buddies and see if anybody needs anything. This way we can save on shipping. We'll usually split the shipping charges between whoever orders. Or we use the "payback". I pay the shipping this time and then when someone else orders they pick up the shipping!!!
We do the same thing for trips to the LHS too. Our nearest LHS is 45 minutes away so when one of us goes we'll take orders and pickup for everybody. Or even better, we'll make a "road trip". When we do that we'll take one or two vehicles (depending on who's going) and drive down to the LHS. And since we just happen to go around lunch time (or course) we have to stop at this great Bar-B-Que place we know of!!!!!!
Ken