I began with one a week, then I went to one every two weeks, then one a month at the most. My videos were getting longer and the subjects I covered required a lot of research. Doing this on top of a full-time job and supporting a family became very difficult indeed. I now upload once every two weeks because my subs count has now reached a point where people will begin to unsub if I don't upload regularly. I've now joined forces with another writer, so it's a little easier. One a week, as far as I'm concered, is a very good schedule. But I suppose it's all relative to what kind of videos you're making.