Reinvent the to-Do List

In the HBR Blog:  I have now used at least a dozen methods of simplifying reminding myself and others what we need to get done.  Bottom line is that simple works best, but it often does not work at all.  Technology makes sense, but even simple paper methods can be useful.  Agree this is a big opportunity.   What can make it work?   Regrettably this link appears to require registration. Shame on Harvard.  Are you a highly endowed educational institution?