Originally Posted by PH in VA
I also have used the inexpensive cardstock as a liner inside cards with dark bases.
One idea I haven't seen yet on this thread - if you're mailing a card with metal embellishments or buttons, cut a piece of the cheap cardstock to the size of your card and run it through your crimper, then insert that between the front of the card and the envelope. The crimped cardstock will help protect the card as it goes through the postal system.
Excellent idea! Thank you for sharing this!