Saving and reusing dried Gouache
I noticed that the gouache dries out very quickly, and is flaky when it does. I found some small craft paint containers, and I put the chips of gouache that have dried in seperate containers, by color.
When I need the same color, I found that you can either just use the small flakes, or grind the flakes and pieces in a small mortar and pestel (just don't reuse it for pesto), then rewet it and it is beautiful.
The little containers are also great for saving the paint in wet form longer.