I wait, giving time for paint to dry.
When I paint on canvas I happen to paint few other “improvised” works on paper and other material. Sometimes they are so spontaneous and loose. I wholeheartedly welcome all of them. Because I never throw them away, I’ve already got a huge pile of papers, and other painted stuff, not belonging to anywhere. Unnamed. Unidentified painted objects. I never try to judge them as good or bad. Sometimes they take far too longer than the “main” painting to be finished.