I start by creating an individual note in Evernote for each project. The title is the Project. I then use the body of the note as my list of individual tasks to complete that project. Evernote allows me to use a checkbox at each item and I can then check off each step when done. (creating a sense of accomplishment!)
If I don't know all the steps to complete the project...which I often don't...when I do a Weekly Review, or when an idea comes to me I add more as needed.