I prefer to Just say that I will finish one article or if that isn’t coming for some reason then I’ll try to finish one flash fiction piece or poem a day. I don’t always manage this but more often than not I do. This still gives me a sense of reinforcement even with the articles not published immediately because they were submitted to publications. Different things work for different people. I need to know I completed something. Others find a word or page limit most useful while still others use a time limit.