Eric E. Wright
First I make sure that I have set aside a clear, uninterrupted time to write, usually in the morning. Then, if I have trouble picking up where I left off, I go back as far as necessary into what I have already written of my work in progress to get a sense of where it was going. That usually clears a writer's block. If not, I just grit my teeth and force myself to work about slowly even when I don't sense inspiration.