Note: adding a drop of gum arabic to the dry paint when topping it off worked very well - even for crumbly colors like Alizarin Crimson.
And here is how I felt about some of the colors after the trip and a month of daily gouaches in June (read the names of the colors) and how I started thinking about changing colors.
Resulting in this palette - which is currently sitting in my bag.
Right now this pocket gouache solution works really great!
I only wish I found a collapsible flat brush to carry with me.
I only wish I found a collapsible flat brush to carry with me.