Not an easy project in these days given how many different sites/sources/tools there are. One step I've taken is to try to cross-reference my main sites/tools [Twitter, Facebook, LinkedIn] so that a post to one is a post to others.
Second, and maybe the best tip to discipline myself to post in the morning, is to set my QuicKeys program to automatically open, in tabs, a series of URLs in my browser at 7:00 a.m., so that I am reminded to and perhaps forced to deal with the issue, to post or not.