A few years ago I bought a "bargain" pack of card blanks from a certain shopping channel. The colours were dire to say the least, but it was too much hassle to send them back so they have been in a box for all this time. It occurred to me the other day, whilst looking through my stash mountain(s), that I could change them ..... either by covering with paper or colouring them somehow. Only took me 4 years to think of this ......... :-) I did a few with paper on, then out came the Glimmer Mist. The picture below shows the various effects I achieved, the card on the left is the original horrible grey.
I still have about 50 blanks left, in other horrible colours ......... :-)