Publix Super Markets has begun a “See for Yourself” campaign, calling out the differences between sale-price items and retail prices for the same items at Wal-Mart. The ads appear at the Publix.com website alongside weekly circulars for stores in the Birmingham, Ala., and Tuscaloosa, Ala., markets, a spokeswoman for the chain, Brenda Reid, told SN. The price comparison ads also appear on posters at select stores.