Thats sound advice Babylon. Thank you.I'm going to sound like I'm ordering you around, but really its just how I give advice...
I recommend a master plan. You know how you have business plans or a project plan? Well, now you need to COMBINE them, focusing on actual objective TASKS.
-Once the master plan has fully integrated the three smaller separate plans, then map them all out in a word file, on a giant calender or palm etc according to TASKS by date.
-Once everything is fully mapped at least a few weeks out (as far as tasks), then you can save time by never (or not as often) having to waste time "thinking of what you need to do". You will simply just "know". From this master task sheet you can then divide up your days by hours/task etc.
-You will need to do a combination of "batching" (combine smaller little things together to save time: example is when you sit down and do ALL of the lab write ups for the entire semester on day one, in one sitting, because its more efficient)
-You will also need to integrate your plans so that you don't get stuck batching for only one of the projects/businesses that day.
Another great piece of advice is to time your down time: get one of those kitchen twist around 60m timers. If you're apt to take too long of breaks when you eat, check email, watch TV etc, set the timer. when it goes off, just instinctively stand up, stop what you're doing and get back to work.