Tim already claimed to bring an assortment of chips.As far as head count only add one for me as I am GF and a awful picky eater - so typically do not eat at picnics much. I will miss the GF cake that has been at our picnics over the last few years. However, my wife will eat and loves picnic type foods. We will bring some type of appitizer - chips and home made guacamole maybe.
Also already coming is pasta salad, macaroni salad and baked macaroni and cheese
