It is important to have a collection/stash of thank you cards. You never know when you might need them. I like to have a neutral set of thank you cards that I can use for anything. These colourful dotty thank you cards are from Paperchase. Paperchase has now closed and been taken over by Tesco. You can still buy some of their products on the Tesco website. However, it appears that they are no longer selling cards unfortunately.