Loveland, Colorado is known worldwide as the Sweetheart city. Every year 1,000's of Valentine's are remailed from here stamped with a special cachet. The cachet is different every year. You too can have your Valentine's hand stamped with the Valentine Cachet by simply addressing your valentine and placing it in a larger envelope addressed as follows:
446 E. 29th St
Loveland, CO 80538
Need more details click here. The post office must receive them before February 9th to receive the cachet and special postmark. Surprise your Sweetheart!