We print these post cards on our computer to serve as post cards in boxes we send to our troops in Afghanistan. The recipients use the cards to rate the products we send and to advise of things they need that we do not send. Some cards returned to us through the U. S. mail are damaged due to their flimsy construction.
These unlined cards are perfect for those all important shopping lists. When all the purchases have been made and scratched off I make a big X on that side and turn the card over for another list. They don't get lost in a purse and the sturdy cards hold up well.
I needed a sturdy card like the lined kind I grew up with but wanted it blank. The packaging did not allow me to "feel" the thickness to see if it would work for me. It didn't. Will donate it to school for kids to use for projects I guess as it's already opened now.
I have over 11 000 photos starting from the 50's and am printing 4X6's for family. Instead of using higher-priced glossy stock I test each print on inexpensive blank 4x6 index cards. Then I use Staples Photo Plus glossy stock for the final print. If the color balance works on the index cards certain to work on the glossy.