A friend of mine gave me a really cute tin filled with 30 cold press Hannemule watercolor postcards. (https://amzn.to/3cceRSN.) You can see the tin in the image above on the upper right corner. It's been super easy to tuck it into a sketch bag with a small pan set of watercolors or gouache, or a favorite brush pen (https://amzn.to/3mAWTOC) for monochromatic studies. The cards are 4x6" with rounded corners. I'd classify the paper as
