Another Amazon offer-
"Spend $29 or more on select Centrum products offered by Amazon.com
in Health & Personal Care between March 1 and March 31, 2006, and we will e-mail you a promotional certificate for $10 between May 11 and May 25, 2006. This offer applies only to single orders of $29 or more consisting of products offered by Amazon.com. It does not apply to products sold on our site by third-party merchants or through third-party areas such as Amazon.com Marketplace, Auctions, or zShops."