What self-study curriculum organizer tool do you use?
neovive: Have you considered using a spreadsheet?  Maybe a Google Spreadsheet or Excel.  You can use to create a list of topics and associated readings, lessons, problem sets and materials.  Then create an extra column "completed" to track the status  of each item.  Then just filter out the completed items to see what else you need to do.  It's a simple solution, but should work well.