I picture these going out to close friends of the bride. If you look for a while you can probably find heroines who look like your friends.
Step 1: Collect Romance Novels
Step 2: Remove Covers
Step 3: Trim to 4 by 6
Step 4: Draw the Postcard Lines
Using a straight edge I draw a line down the center and three lines for the address.
Step 5: Write the Postcard
Make sure to include all the details.
Step 6: Mail
These will certainly not be confused for junk mail.