Trader Joe’s is preparing for the warmer months ahead with the launch of six summer-themed mini insulated tote bags . The retailer announced its line of Summer Fun Mini Insulated Totes to The Independent on Thursday. Each item has a one-and-a-half-gallon capacity, a zipper top and two reinforced handles. Two of the six bags have a striped design, with one sold in red and pink and another in blue and green. The four other totes — offered in orange, blue, green or purple — feature a silhouette design of a Trader Joe’s store next to palm trees. The mini cooler bags will drop in stores nationwide starting May 20 and cost $3.99 each. “Many of our customers have also found that they make quite a statement when used to carry your lunch along to school or work,” a Trader Joe’s spokesperson told The Independent .…