BENTONVILLE, Ark.–(BUSINESS WIRE)–It’s officially summer and with the changing of the season comes warm weather, barbecues and time spent outdoors with friends and family. At Walmart, customers don’t have to worry about spending more to enjoy their favorite summertime gatherings with loved ones. Walmart is proud to offer its Every Day Low Prices all summer long, from the big celebrations like Fourth of July to all the little moments in between. This year, The National Retail Federation has re