"...Loveland is perhaps best known worldwide as the home of the "Valentine Re-Mailing Program". Every year, more than a hundred thousand Valentines are packaged inside larger envelopes and sent to Loveland, where volunteers hand-stamp them with a Valentine's verse and send them on to the intended recipients.
If you would like to have your valentine card stamped with the official Loveland Colorado cachet and stamp, please mail your pre-stamped, pre-addressed envelopes ..."
Read more at withlovefromloveland.com