Hobo bags are oval in shape, with a zipper on the top. Small straps are connected to both ends so your shoulder can go through them. This bag usually has many compartments on the inside and a large storage area. Tote bags are perfect for running errands and for going to the beach or pool. They're large squarish bags with small to medium straps. They usually do not have a zipper. Tote bags are usually made from a very durable fabric to resist water and sand. Shoulder tote bags are large, squarish bags. However, some do not have any defined shapes. A large sack is connected to small straps to fit around your shoulders. Shoulder totes are great for everyday use but don't fill them up too much -- they could cause strain on your shoulder.