If you haven't settled on a planner of some sort (book or electronic), choose one that you can take with you where ever you go. (I recommend against a computer-based planner unless you've got a companion handheld that synchronizes easily.) Spend some money on whatever you select, so you'll be more likely to 'respect' it as an investment and, consequently, spend some time learning to use it.
Schedule enough time to learn how to use your planner (book-type planners are not too tough to figure out, but hand held devices (PalmPilot© and the host of also-rans) are sufficiently feature-rich to require some instruction or at least some time spent reading the owner's manual).
Go through each of your project flowcharts and capture key dates in your planner:
- Every milestone date
- Those task start dates that involve either critical path work or a participant whose skill/motivation are less than 100%.
- Dates upon which key resources must be in the hands of participants in order for them to perform
- The project deadline
Add additional key project dates that don't appear on your flowcharts
- Prime Mover review dates
- Participant meeting dates
- Routine documentation distribution dates
Set aside time in your planner to perform project management duties
- Monitor participant performance, particularly around critical path milestones and task start dates
- Prepare for participant and Prime Mover meetings
- Gather and prepare project documentation
- Perform project tasks yourself
Compare the priority of every new request for your time against the priority of commitments you've made, as they appear in your planner
- Comply when the request is important and urgent
- Schedule for later when the request is important but not urgent
- Deny when the request is neither important nor urgent
Make a habit of planning your time and following your plan, but remain flexible to changing priorities IF THE CHANGE IS VALID.