As one of its daily deals, Walmart offers the George Boys' or Girls' Short-Sleeve Polo Shirt 4-Pack in assorted colors for $19 plus 97 cents for shipping ($5/shirt). That's $3 less than our mention from two weeks ago and the best deal we've seen on these shirts. They're are available in sizes XS to XXL, although not in all size/color combinations. They can be mixed and matched. Deal ends today.