Go check out Leafcutter Designs to have a letter written to those you love. The letter will be transcribed onto tiny papers and sealed in an itty-bitty envelope. They will send the letter along with a magnifying glass to your recipient.
Receiving a letter in this way seems so heartfelt. If you're inspired, write your own letter but be sure to mail it in a package large enough for the post office to mail! :) You can see the beautiful process Leafcutter Designs takes to get this special note in the mail and delivered to your loved one.
Hurry and order though! The sooner they can get the order the more assurance they can give that the letter will arrive by Valentine's Day!