REI offers the Smartwool PhD Ski Medium Pattern Socks in Graphite/White or Red/Black for $17.73. Opt for in-store pickup to dodge the $5.99 shipping charge. That's the lowest price we could find by $3. They're available in sizes M to XL, although not in all size/color combinations.
L.L.Bean offers its L.L.Bean Women's Two-Eye Canvas Deck Shoes in Natural or Navy for $39.99 with free shipping. That's $20 off and the best price we could find. They're available in medium and wide sizes 6 to 11, although not in all color/size combinations.