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.
REI offers the Bogs Kids' Digital Camo Rain Boots in Black or Olive for $34.73. Opt for in-store pickup to avoid the $5.99 shipping fee. That's $15 off and the lowest price we could find. They're available in sizes from little kids' 7 to big kids' 6.