This is a super important tip, especially if you want to create watercolor paintings with bright beautiful colors.
If you are like me and have tube paints squeezed into a palette and allowed to air dry, it is important to clean your palette when you are done painting for the day.
If you have a problem creating muddy paintings, perhaps one of the problems is dirty colors.
Simply take a damp flat brush and swipe it over the top of the color a few times. Rinse your brush and repeat on each color. Wipe up the large mixing tray too with a damp sea sponge or damp paper towel.
There is nothing like starting a new painting with a clean palette of gorgeous colors.