[MENTION=82425]BobTheNob[/MENTION]
The issue with the workday was that there is not always an organic reason to move characters forward. Even when there is one, you can only do it so many times before it hints to railroading or gets inorganic and contrived.
Of course if your DM never has that problem then it is fine. And don't use milestones.
Different debate for a different thread (and there is already multiple of them out there, most of which I have posted in). This thread pertains to mechanical solutions.
[MENTION=18340]CM[/MENTION] had a good mechanical suggestion and I acknowledged it. My disclaimer of propensity for organic solutions over mechanical was simply a disclaimer so that I could acknowledge the idea as a good one without necessarily associating myself with it. It didnt need rebuking here.